This document provides information on creating a 3-tier web application architecture in Eclipse using JSP. It discusses dividing classes into sub-tasks like views, services and database layers. It also covers creating packages, JSP pages, beans, getters/setters, and service layers. The service layer interacts with the database layer using JDBC to perform operations like registration. The presentation layer posts data to JSP pages, which then call the service layer.
Logback is a logging framework for Java that consists of three modules: logback-core, logback-classic, and logback-access. Logback-classic builds upon logback-core to provide logging services for most popular logging frameworks like SLF4J. It uses Loggers, Appenders, and Layouts where Loggers generate log information, Appenders write log data to destinations, and Layouts specify the format of the log output. Logback reads configuration files like logback.xml to configure loggers, appenders, and logging levels. Common appenders include ConsoleAppender for console output and FileAppender for file output.
Java ain't scary - introducing Java to PL/SQL DevelopersLucas Jellema
This document provides an introduction to Java for PL/SQL programmers. It begins with a Hello World example in both PL/SQL and Java. It then discusses key concepts such as the Java Virtual Machine (JVM) and how Java code is compiled and executed. The document demonstrates language basics like methods, variables, loops, and exceptions. It also introduces object-oriented concepts like classes and objects. The goal is to help PL/SQL programmers get comfortable with the Java language and environment at a high level.
Introduction to JDBC and database access in web applicationsFulvio Corno
Introduction to the JDBC standard and best practices for database access from Web Applications.
Materiale realizzato per il corso di Sistemi Informativi Aziendali del Politecnico di Torino - http://bit.ly/sistinfo
This document provides an overview of new features introduced in Java versions 9 through 12, including modules, the HTTP client, process API improvements, and stream API additions. Key features of Java 9 include the Java Platform Module System, HTTP client, and reactive streams framework. Java 10 focuses on local variable type inference, unmodifiable collections, and time-based release versioning. Java 11 adds lambda parameter syntax, single file programs, and the HTTP client. Finally, Java 12 features include switch expressions and new stream collectors.
This document discusses using JDBC to access databases from Java applications like JSP pages. It covers loading the appropriate JDBC driver, establishing a connection with the database using a connection URL, executing SQL statements using Statement objects to retrieve and process result sets, and closing the connection when done. The core steps are to load the driver, get a connection, create statements, execute queries/updates, process results, and close the connection.
The document summarizes new features introduced in Java 5 and Java 6. Java 5 introduced generics, autoboxing/unboxing, enhanced for loops, and annotations. Java 6 added support for XML processing and web services using annotations, the Rhino JavaScript engine, improved GUI APIs, and Java DB for database connectivity.
The document discusses JDBC (Java Database Connectivity) basics including connecting to a database, executing SQL statements to create, update, query, and delete data. It covers establishing a connection using the DriverManager, executing SQL using Statement objects, and includes examples for creating a table, inserting rows, updating rows, selecting rows, and deleting rows. The document is intended as a 20 minute introduction to JDBC fundamentals.
Logback is a logging framework for Java that consists of three modules: logback-core, logback-classic, and logback-access. Logback-classic builds upon logback-core to provide logging services for most popular logging frameworks like SLF4J. It uses Loggers, Appenders, and Layouts where Loggers generate log information, Appenders write log data to destinations, and Layouts specify the format of the log output. Logback reads configuration files like logback.xml to configure loggers, appenders, and logging levels. Common appenders include ConsoleAppender for console output and FileAppender for file output.
Java ain't scary - introducing Java to PL/SQL DevelopersLucas Jellema
This document provides an introduction to Java for PL/SQL programmers. It begins with a Hello World example in both PL/SQL and Java. It then discusses key concepts such as the Java Virtual Machine (JVM) and how Java code is compiled and executed. The document demonstrates language basics like methods, variables, loops, and exceptions. It also introduces object-oriented concepts like classes and objects. The goal is to help PL/SQL programmers get comfortable with the Java language and environment at a high level.
Introduction to JDBC and database access in web applicationsFulvio Corno
Introduction to the JDBC standard and best practices for database access from Web Applications.
Materiale realizzato per il corso di Sistemi Informativi Aziendali del Politecnico di Torino - http://bit.ly/sistinfo
This document provides an overview of new features introduced in Java versions 9 through 12, including modules, the HTTP client, process API improvements, and stream API additions. Key features of Java 9 include the Java Platform Module System, HTTP client, and reactive streams framework. Java 10 focuses on local variable type inference, unmodifiable collections, and time-based release versioning. Java 11 adds lambda parameter syntax, single file programs, and the HTTP client. Finally, Java 12 features include switch expressions and new stream collectors.
This document discusses using JDBC to access databases from Java applications like JSP pages. It covers loading the appropriate JDBC driver, establishing a connection with the database using a connection URL, executing SQL statements using Statement objects to retrieve and process result sets, and closing the connection when done. The core steps are to load the driver, get a connection, create statements, execute queries/updates, process results, and close the connection.
The document summarizes new features introduced in Java 5 and Java 6. Java 5 introduced generics, autoboxing/unboxing, enhanced for loops, and annotations. Java 6 added support for XML processing and web services using annotations, the Rhino JavaScript engine, improved GUI APIs, and Java DB for database connectivity.
The document discusses JDBC (Java Database Connectivity) basics including connecting to a database, executing SQL statements to create, update, query, and delete data. It covers establishing a connection using the DriverManager, executing SQL using Statement objects, and includes examples for creating a table, inserting rows, updating rows, selecting rows, and deleting rows. The document is intended as a 20 minute introduction to JDBC fundamentals.
JDK 1.6 introduced enhancements to collections like Deque and BlockingDeque. It added support for XML, web services, and annotations. New features included support for scripting languages via JSR 223, improved JDBC 4.0 support, and enhancements to AWT and Swing for application GUIs. The Java compiler APIs were also made accessible to programs.
Building the simplest non-trivial application I could think of, using Java 8 (lambdas, streams, tiny bit of new date & time), with a JavaFX UI and websockets for communication.
More details here:
http://trishagee.github.io/presentation/java8_in_anger/
This document provides an overview of common tools used for building, logging, and unit testing Java applications: Maven for build automation, Log4J2 and SLF4J for logging, and JUnit for unit testing. It describes the purpose and basic usage of each tool. For Maven, it covers the standard project layout, dependencies, lifecycle, and POM file. For logging, it explains Log4J2 configuration and best practices. And for testing, it introduces the JUnit framework and common assertions.
The document discusses the new features introduced in Java versions 8 through 11. It provides 10 examples of features added in Java 9, including private methods in interfaces and collection factory methods. Another section outlines 6 features from Java 10 such as local variable type inference. Finally, Java 11 features like local-variable syntax for lambda parameters and the standardization of the HTTP client are presented along with various API improvements and removed features.
The document provides templates and examples for creating Swing-based GUI applications, servlets, Java Server Pages (JSP), Java Database Connectivity (JDBC), Java Server Faces (JSF), Enterprise Java Beans (EJB), Hibernate, Struts, and web services in Java. It includes templates for common GUI components, servlets, JSP tags, database queries, managed beans, navigation rules, entity beans, Hibernate mappings, actions, and web service providers/consumers.
The document discusses the new features and certification process for Java SE 7. It describes that the certification has been updated to require more advanced skills. There are now two certification levels: Oracle Certified Associate, Java SE 7 Programmer (OCA) and Oracle Certified Professional, Java SE 7 Programmer (OCP). The OCA exam covers basic Java topics in 90 multiple choice questions over 140 minutes. The OCP exam requires passing the OCA first and covers more advanced topics in 90 questions over 150 minutes. Developers with prior certifications can take an upgrade exam to certify for Java SE 7.
This document contains a quiz on Java programming concepts like NullPointerException, floating point numbers, StringBuffer, inheritance, and stacks. It includes 10 multiple choice questions related to code snippets that demonstrate these concepts, along with explanations of some answers.
This document discusses JSP and JSTL. It begins with an introduction to JSP, explaining that JSP is a server-side technology used to create dynamic web content by inserting Java code into HTML pages. It then covers some advantages of JSP over servlets, features of JSP like ease of coding and database connectivity, and how to run a JSP project in Eclipse. The document next discusses JSTL, the JavaServer Pages Standard Tag Library, which provides commonly used JSP tags. It classifies JSTL tags and provides examples. Finally, it discusses interfacing a Java servlet program with JDBC and MySQL to insert data into a database table.
The document discusses using JDBC (Java Database Connectivity) for object-relational mapping in Java. It covers connecting to databases, executing SQL statements and queries, working with ResultSets, and best practices for managing database connections. Key points include using the DriverManager class to obtain database connections, preparing statements for parameterized queries, and implementing a DAO (Data Access Object) layer to encapsulate data access logic.
Akka is using the Actors together with STM to create a unified runtime and programming model for scaling both UP (multi-core) and OUT (grid/cloud). Akka provides location transparency by abstracting away both these tangents of scalability by turning them into an ops task. This gives the Akka runtime freedom to do adaptive automatic load-balancing, cluster rebalancing, replication & partitioning
Mark Thomas gave a presentation on Tomcat 7 and the new features in Servlet 3.0. Some of the major changes covered included support for asynchronous processing, web fragments, dynamic configuration through programmatic additions of servlets and filters, and additional annotations. The timeline for finalizing Servlet 3.0 was discussed, as well as the current status of Tomcat 7 development to support the new specification.
JDBC drivers implement interfaces to interact with databases. There are 4 types of JDBC drivers: Type 1 is for development/testing; Type 2 is used if Types 3/4 aren't available; Type 3 supports multiple databases; Type 4 is preferred for a single database. Creating a JDBC application involves: importing packages, registering the driver, opening a connection, executing queries, extracting result sets, and closing resources.
Open Ldap Integration and Configuration with Lifray 6.2.LDAP (Lightweight Directory Access Protocol) is a software protocol for enabling anyone to locate organizations, individuals, and other resources such as files and devices in a network, whether on the public Internet or on a corporate intranet
This document discusses Remote Method Invocation (RMI) in Java. It describes the general RMI architecture involving clients, servers, stubs, and skeletons. It outlines the steps to develop an RMI system, including defining the remote interface, developing the remote object, generating stubs and skeletons, starting the RMI registry, and running the client. Key aspects covered are the stub and skeleton's roles in marshaling and unmarshaling calls and results, as well as using a security policy file to control permissions.
This session, delivered at Devoxx Poland, covers all the major changes to the Java platform between JDK 12 and JDK 17. All language features are covered, as well as many of the important API changes.
Modern Programming in Java 8 - Lambdas, Streams and Date Time APIGanesh Samarthyam
This presentation provides a comprehensive overview of modern programming in Java. It focuses only on Java 8 features: Lambdas, Streams and Date Time API. It also briefly covers refactoring legacy Java code to Java 8.
JDBC provides a standard interface for communication between Java programs and SQL databases, allowing Java programs to execute SQL statements and process the results. It requires loading a JDBC driver, establishing a connection to the database, executing SQL statements via that connection, and processing any results. The document outlines the key JDBC classes, interfaces, and steps for connecting to a database, executing statements, and retrieving and using the results.
This document provides an overview of JDBC (Java Database Connectivity) technology. It discusses the basic steps to use JDBC including loading drivers, establishing connections, executing queries, processing results, and closing connections. It also covers JDBC drivers, prepared statements, callable statements, result sets, and using metadata. The goal is to introduce developers to the key concepts and components involved in using JDBC to connect Java applications to databases.
JDK 1.6 introduced enhancements to collections like Deque and BlockingDeque. It added support for XML, web services, and annotations. New features included support for scripting languages via JSR 223, improved JDBC 4.0 support, and enhancements to AWT and Swing for application GUIs. The Java compiler APIs were also made accessible to programs.
Building the simplest non-trivial application I could think of, using Java 8 (lambdas, streams, tiny bit of new date & time), with a JavaFX UI and websockets for communication.
More details here:
http://trishagee.github.io/presentation/java8_in_anger/
This document provides an overview of common tools used for building, logging, and unit testing Java applications: Maven for build automation, Log4J2 and SLF4J for logging, and JUnit for unit testing. It describes the purpose and basic usage of each tool. For Maven, it covers the standard project layout, dependencies, lifecycle, and POM file. For logging, it explains Log4J2 configuration and best practices. And for testing, it introduces the JUnit framework and common assertions.
The document discusses the new features introduced in Java versions 8 through 11. It provides 10 examples of features added in Java 9, including private methods in interfaces and collection factory methods. Another section outlines 6 features from Java 10 such as local variable type inference. Finally, Java 11 features like local-variable syntax for lambda parameters and the standardization of the HTTP client are presented along with various API improvements and removed features.
The document provides templates and examples for creating Swing-based GUI applications, servlets, Java Server Pages (JSP), Java Database Connectivity (JDBC), Java Server Faces (JSF), Enterprise Java Beans (EJB), Hibernate, Struts, and web services in Java. It includes templates for common GUI components, servlets, JSP tags, database queries, managed beans, navigation rules, entity beans, Hibernate mappings, actions, and web service providers/consumers.
The document discusses the new features and certification process for Java SE 7. It describes that the certification has been updated to require more advanced skills. There are now two certification levels: Oracle Certified Associate, Java SE 7 Programmer (OCA) and Oracle Certified Professional, Java SE 7 Programmer (OCP). The OCA exam covers basic Java topics in 90 multiple choice questions over 140 minutes. The OCP exam requires passing the OCA first and covers more advanced topics in 90 questions over 150 minutes. Developers with prior certifications can take an upgrade exam to certify for Java SE 7.
This document contains a quiz on Java programming concepts like NullPointerException, floating point numbers, StringBuffer, inheritance, and stacks. It includes 10 multiple choice questions related to code snippets that demonstrate these concepts, along with explanations of some answers.
This document discusses JSP and JSTL. It begins with an introduction to JSP, explaining that JSP is a server-side technology used to create dynamic web content by inserting Java code into HTML pages. It then covers some advantages of JSP over servlets, features of JSP like ease of coding and database connectivity, and how to run a JSP project in Eclipse. The document next discusses JSTL, the JavaServer Pages Standard Tag Library, which provides commonly used JSP tags. It classifies JSTL tags and provides examples. Finally, it discusses interfacing a Java servlet program with JDBC and MySQL to insert data into a database table.
The document discusses using JDBC (Java Database Connectivity) for object-relational mapping in Java. It covers connecting to databases, executing SQL statements and queries, working with ResultSets, and best practices for managing database connections. Key points include using the DriverManager class to obtain database connections, preparing statements for parameterized queries, and implementing a DAO (Data Access Object) layer to encapsulate data access logic.
Akka is using the Actors together with STM to create a unified runtime and programming model for scaling both UP (multi-core) and OUT (grid/cloud). Akka provides location transparency by abstracting away both these tangents of scalability by turning them into an ops task. This gives the Akka runtime freedom to do adaptive automatic load-balancing, cluster rebalancing, replication & partitioning
Mark Thomas gave a presentation on Tomcat 7 and the new features in Servlet 3.0. Some of the major changes covered included support for asynchronous processing, web fragments, dynamic configuration through programmatic additions of servlets and filters, and additional annotations. The timeline for finalizing Servlet 3.0 was discussed, as well as the current status of Tomcat 7 development to support the new specification.
JDBC drivers implement interfaces to interact with databases. There are 4 types of JDBC drivers: Type 1 is for development/testing; Type 2 is used if Types 3/4 aren't available; Type 3 supports multiple databases; Type 4 is preferred for a single database. Creating a JDBC application involves: importing packages, registering the driver, opening a connection, executing queries, extracting result sets, and closing resources.
Open Ldap Integration and Configuration with Lifray 6.2.LDAP (Lightweight Directory Access Protocol) is a software protocol for enabling anyone to locate organizations, individuals, and other resources such as files and devices in a network, whether on the public Internet or on a corporate intranet
This document discusses Remote Method Invocation (RMI) in Java. It describes the general RMI architecture involving clients, servers, stubs, and skeletons. It outlines the steps to develop an RMI system, including defining the remote interface, developing the remote object, generating stubs and skeletons, starting the RMI registry, and running the client. Key aspects covered are the stub and skeleton's roles in marshaling and unmarshaling calls and results, as well as using a security policy file to control permissions.
This session, delivered at Devoxx Poland, covers all the major changes to the Java platform between JDK 12 and JDK 17. All language features are covered, as well as many of the important API changes.
Modern Programming in Java 8 - Lambdas, Streams and Date Time APIGanesh Samarthyam
This presentation provides a comprehensive overview of modern programming in Java. It focuses only on Java 8 features: Lambdas, Streams and Date Time API. It also briefly covers refactoring legacy Java code to Java 8.
JDBC provides a standard interface for communication between Java programs and SQL databases, allowing Java programs to execute SQL statements and process the results. It requires loading a JDBC driver, establishing a connection to the database, executing SQL statements via that connection, and processing any results. The document outlines the key JDBC classes, interfaces, and steps for connecting to a database, executing statements, and retrieving and using the results.
This document provides an overview of JDBC (Java Database Connectivity) technology. It discusses the basic steps to use JDBC including loading drivers, establishing connections, executing queries, processing results, and closing connections. It also covers JDBC drivers, prepared statements, callable statements, result sets, and using metadata. The goal is to introduce developers to the key concepts and components involved in using JDBC to connect Java applications to databases.
JDBC is used to connect Java applications to databases. It uses drivers specific to each database type. The key steps are: 1) loading the driver, 2) defining the connection URL, 3) establishing a connection, 4) creating statements to execute queries or updates, 5) processing result sets, and 6) closing connections. Prepared statements are useful for queries executed multiple times to avoid recompilation. Transactions allow grouping statements that must all succeed or fail together to maintain database consistency.
JDBC (Java Database Connectivity) is an API that provides Java programs with the ability to connect to and interact with databases. It allows database-independent access to different database management systems (DBMS) using Java programming language. JDBC drivers are used to connect to databases and come in four types depending on how they interface with the database. The basic steps to use JDBC include registering a driver, connecting to the database, executing SQL statements, handling results, and closing the connection. Scrollable result sets and prepared statements are also introduced as advanced JDBC features.
JDBC (Java Database Connectivity) is an API that provides Java programs with the ability to connect to and interact with databases. It allows database-independent access to different database management systems (DBMS) using Java programming language. JDBC drivers are used to connect to databases and come in four types depending on how they interface with the database. The basic steps to use JDBC include registering a driver, connecting to the database, executing SQL statements, handling results, and closing the connection. Scrollable result sets and prepared statements are also introduced as advanced JDBC features.
The document discusses database connectivity between a front-end interface and back-end database. It explains that the front-end is the user interface where data is entered, and the back-end is an invisible database that stores and provides data to the application. It then outlines the key components needed for connectivity - the JDBC API and driver to allow Java applications to interact with MySQL databases. The final sections describe classes used for connectivity like DriverManager, Connection, Statement, and ResultSet, and the typical steps to set up connectivity in a Java application.
The document provides an overview of the Java Database Connectivity (JDBC) API. It discusses that JDBC allows Java applications to connect to relational databases and execute SQL statements. It describes the different types of JDBC drivers and the core JDBC classes like Connection, Statement, ResultSet, and their usage. The steps to connect to a database and execute queries using JDBC are outlined. Key concepts like processing result sets, handling errors, batch processing, stored procedures are also summarized.
The document discusses Java Database Connectivity (JDBC) and how it allows Java code to execute SQL statements inside relational databases. It covers the JDBC API and how it provides a standard interface to different databases. It also discusses the JDBC-ODBC bridge which allows Java code to access databases via ODBC. The document provides an example of JDBC code to connect to a database, execute a query, and access the result set. It discusses using connection pooling and JNDI lookups in J2EE applications to connect to databases.
The document discusses connecting Java applications to MS Access and MySQL databases using JDBC. It provides code examples to demonstrate loading drivers, establishing connections, executing queries, retrieving results, and closing connections for basic CRUD (create, read, update, delete) operations. It also covers differences between Statement and PreparedStatement interfaces and using stored procedures with CallableStatement.
JDBC provides a standard interface for connecting to relational databases from Java applications. It establishes a connection by loading a JDBC driver, then executing SQL statements using objects like Statement and PreparedStatement. Results are retrieved into a ResultSet which can be processed row-by-row. Finally, connections are closed to release resources.
This document discusses JDBC (Java Database Connectivity) which provides an API for interfacing Java code with databases. It describes the four types of JDBC drivers, focusing on Type 1 (JDBC-ODBC bridge) and Type 4 (Pure Java) drivers. It provides code examples for connecting to a database using a Type 1 driver, performing CRUD operations like creating tables, inserting rows, updating and fetching rows. It also covers topics like transactions, prepared statements, and handling exceptions.
This document provides an overview of Java Database Connectivity (JDBC) and how to use it. It discusses how JDBC works by registering drivers, connecting to databases, and executing SQL statements. It also provides steps for configuring JDBC with Eclipse and Microsoft SQL Server, including downloading drivers and copying files. Examples are given for creating tables, executing queries with the Statement interface, and fetching data from the ResultSet. The document concludes by demonstrating how to properly close resources.
The document discusses JDBC (Java Database Connectivity), which provides a standard interface for connecting to relational databases from Java applications. It describes fundamental JDBC concepts like establishing a connection, executing queries using Statement and PreparedStatement objects, processing result sets, and transaction management. The document also contrasts databases with file systems and provides JDBC driver names and URL formats for popular databases.
JDBC (Java Database Connectivity) provides Java applications with access to most database systems via SQL. It defines a standard API for accessing databases in Java. The key classes and interfaces in JDBC include DriverManager, Connection, Statement, PreparedStatement, ResultSet, and DatabaseMetaData. JDBC applications use the DriverManager to obtain a Connection to a database, then execute SQL statements using Statement or PreparedStatement objects to return ResultSet objects containing query results.
This document discusses using JDBC to access databases from Java applications like JSP pages. It covers loading the appropriate JDBC driver, establishing a connection with the database using a connection URL, executing SQL statements using Statement objects to retrieve and process result sets, and closing the connection when done. The core steps are to load the driver, get a connection, create statements, execute queries/updates, process results, and close the connection.
Java Web Programming [3/9] : Servlet AdvancedIMC Institute
This document provides an overview of servlet advanced topics including including, forwarding to, and redirecting to other web resources. It discusses servlet and JDBC integration including using prepared statements and callable statements. It also covers session tracking APIs and how they can be used to maintain state across HTTP requests through different mechanisms like cookies or URL rewriting. Finally, it briefly introduces servlet scopes, listeners, and filters.
This document provides an overview of Java Database Connectivity (JDBC) including:
- JDBC provides a vendor-neutral way to connect Java applications to databases.
- It describes the basic components and architecture of JDBC including drivers, connections, statements, and result sets.
- It explains how to establish a connection to a database using JDBC including installing drivers, getting connections, executing queries, and processing result sets.
This document discusses connectivity in SQL and JDBC. It begins by explaining that JDBC is a Java API that allows Java programs to execute SQL statements. It then describes the JDBC architecture and drivers. The responsibilities of the JDBC client include establishing a connection, submitting SQL statements, processing results, and closing the connection. The document outlines the steps to develop a Java/JDBC application, including loading and registering drivers, establishing a connection, preparing and executing statements, processing result sets, and closing connections. Finally, it compares Statement and PreparedStatement objects.
The document provides an overview of agile methodology compared to traditional waterfall methodology. Waterfall development completes each phase sequentially before moving to the next, which can be risky and inefficient. Agile is iterative and adaptable, prioritizing working software over documentation. Scrum is an agile framework that uses short sprints, daily stand-ups, and backlogs to deliver working software frequently. Kanban also uses iterative development but visualizes workflows on boards to limit work in progress and optimize lead times.
This document provides best practices for coding. It discusses the importance of coding practices in reducing rework time and saving money. It covers four key areas: program design, naming conventions, documentation, and formatting. Program design discusses architectures like MVC and data storage. Naming conventions provide guidelines for naming classes, methods, variables and packages using conventions like camel casing. Documentation comments are important for maintaining programs and explaining code to other developers. Formatting addresses indentation, whitespace and brace formatting.
This document provides an introduction to the Java programming language. It discusses installing the JDK and Eclipse development environment. It then covers JVM, JRE, and JDK concepts. The document demonstrates a simple "Hello World" Java program. It discusses Java naming conventions and basic data types. It also outlines common loops and control structures in Java. The remainder of the document provides examples of Java programs and discusses arrays, lists, modifiers, methods, OOP concepts by relating real-world objects to objects in software, and how to define classes and create objects in Java.
This PPT will help to understand how learning happens in brain. How you can adjust your skill acquisition in the right way so that maximum output is obtained.
Baabtra.com has a solution to provide programming for kids in school. This is based on the CBSE curriculum of India. The main subjects covered are Mathematics and Physics.
99LMS is a mobile based comprehensive enterprise learning environment in which learning processes of a company can be managed and integrated. It ensures employees have the right skills by enabling course content management, providing classroom training and e-learning. Through the APIs, you can develop your resources before they join your company.
The document provides an introduction to using PHP sessions and cookies to maintain state across multiple requests. It discusses how cookies store small amounts of data on the client browser, while sessions allow storing data on the server. The document then provides steps to create a login system using sessions: 1) Check login credentials and create a session variable on successful login, 2) Display user profile details on the profile page by fetching the session variable, 3) Include a logout link that destroys the session to end the user session. Key differences between cookies and sessions are also summarized - cookies are stored on the client while sessions are stored on the server.
This document provides an introduction and instructions for connecting a PHP application to a MySQL database. It discusses storing and retrieving data from the database. The key steps covered are:
1. Connecting to the MySQL server from PHP using mysql_connect().
2. Selecting the database to use with mysql_select_db().
3. Executing SQL queries to store/retrieve data with mysql_query().
4. Different mysql_fetch_* functions that can be used to retrieve rows of data from a database query.
An example task is provided where a registration form allows storing user data to a database table, and then retrieving and displaying the stored data in a table.
The document discusses database normalization and the three forms of normalization. It provides examples of tables that violate each normal form and explains how to modify the tables to conform to the normal forms. The first normal form requires each field to contain a single value and related data to be stored in separate tables or fields. The second normal form eliminates redundant data by creating separate tables for values that apply to multiple records. The third normal form ensures non-key fields are fully dependent on the primary key and removes transitive dependencies.
This document discusses transactions in SQL Server. It introduces transactions and their relevance in ensuring data integrity when multiple tables need to be updated together. Transactions group a set of database operations so that if any operation fails, all operations are rolled back. The document demonstrates creating a transaction using START TRANSACTION, COMMIT TRANSACTION, and ROLLBACK TRANSACTION statements. It also shows handling transactions within try/catch blocks so that failures cause a rollback. Transactions ensure atomicity and integrity by committing all operations together as a single unit, or rolling them all back if any fail.
The document discusses user defined functions (UDF), views, and indexing in SQL Server. It provides an example of a UDF that returns a teacher's name based on their ID. Key differences between stored procedures and UDFs are that UDFs are compiled at runtime, can't perform DML operations, and must return a value. Views are described as customized representations of data from tables that don't take up storage space themselves. Indexing improves the speed of operations by organizing data to allow faster searches.
This document discusses stored procedures in SQL Server. It begins by explaining that stored procedures allow encapsulation of repetitive tasks and are stored in the database data dictionary. It then shows how stored procedures reduce network traffic and client-server communication compared to individual SQL statements. The document provides examples of how to create a stored procedure using CREATE PROCEDURE and how to call it using EXEC. It notes advantages like precompiled execution, reduced traffic, code reuse, and security control. It also demonstrates using parameters, loops, conditions and variables inside stored procedures.
This document provides an introduction to SQL server functions, grouping, and joins. It discusses aggregate functions that return single values from columns like average, sum, min, and count. It also discusses scalar functions that return a single value for each row like upper, lower, and round. The document explains how to use the GROUP BY clause to group result sets and then run aggregate functions on the groups. It also covers the HAVING clause, which filters grouped data. Finally, it describes different types of joins like inner joins, left outer joins, and right outer joins.
This document provides an introduction to database management systems (DBMS) and SQL Server. It discusses what a database is and where databases are used. It then explains what a DBMS is and some examples of DBMS software. The document goes on to describe the relational database model including entities, attributes, relationships and keys. It also discusses the entity-relationship model. Finally, it covers SQL statements including DDL, DML, and DCL and provides examples of commands for creating tables, inserting and updating data, and setting privileges.
This document provides an introduction to database management systems (DBMS) and SQL Server. It discusses what a database is and where databases are used. It then describes DBMS as software that allows users to define, create, query, update and administer databases. Common DBMS examples include Oracle, MySQL, PostgreSQL and SQL Server. The document goes on to explain relational databases and the entity-relationship model. It also covers key concepts like tables, rows, columns, primary keys and foreign keys. Finally, it discusses the major SQL statements: DDL for defining database structure, DML for managing data, and DCL for controlling access privileges.
Microsoft HoloLens is the first holographic computer that does not require wires or connection to another device. It allows users to see holograms overlaid in the real world. HoloLens features see-through holographic lenses, sensors, and a processing unit that allows it to understand the environment and overlay holograms without wires in real-time. HoloLens uses augmented reality technology to supplement real-world environments with virtual elements and can enable entirely new ways of communication, creation and exploration through holograms.
The document outlines the Blue Brain project which aims to create a virtual model of the human brain through simulation. The objectives are to gain insights into human thinking and memory in order to cure diseases like Parkinson's. It discusses how the brain works and how artificial neural networks could be used to simulate it. Requirements for the Blue Brain include nanobots to monitor brain activity and interface it with a computer. Potential applications include developing supercomputers and understanding animal behavior, while risks involve dependency on technology and security issues.
The document provides information on the 5 generations of cellular network technology: 1G through 5G. 1G began in the 1980s and allowed analog voice calls. 2G launched in the late 1980s and added digital voice and SMS. 3G started in the late 1990s and enabled higher speed data up to 2Mbps. 4G launched in 2010 with speeds up to 100Mbps. 5G is the next major phase, expected to have speeds up to 1Gbps, be 10 times more capable than previous generations, and allow for complete wireless communication with almost no limitations.
An aptitude test measures an individual's ability to apply skills and knowledge. It tests logical reasoning and thinking through multiple choice questions that are timed strictly. Different types of aptitude tests include verbal, numerical, abstract, and spatial abilities. To prepare, practice is important as well as focusing on weak areas. When taking the test, arrive on time, understand instructions, answer questions accurately and quickly while watching the time, and avoid spending too much time on any one question.
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11. Tasks
• Complete the classes with methods by dividing them
into sub-tasks.
Example:
Module- Customer registration
Classes-view, service, DB, Customer bean
Methods-
• saveDetails()-return value Customer id
• fetchDetails(custID) - return Customer details object
• Show the return customer id or error message in a
page
11
12. Package
Packages are nothing more than the way we organize files
into different directories according to their functionality,
usability as well as category they should belong to.
12
23. • You have to import classes EmployeeBean, DB.AddEmployee
since service layer deals with database layer and bean class.
• Code for service layer is:
import com.baabtra.bean.EmployeeBean;
import com.baabtra.DB.AddEmployee;
public class AddEmployeeService {
public String registerEmployee(EmployeeBean emp)
{
AddEmployee register= new AddEmployee();
String returnmsg=register.registerEmployeeDB(emp);
return returnmsg;
}
}
23
24. Presentation layer
• Post data to page register.jsp
• Import required classes to register.jsp
<%@ page import="com.Pharma.bean.EmployeeBean"%>
<%@ page import="com.Pharma.Service.AddEmployeeService"%>
• Store data in variables
<%
String employee_id =request.getParameter("employee_id");
System.out.println("Employee Id :"+employee_id);
String employee_name =request.getParameter("employee_name");
String user_name =request.getParameter("user_name");
String employee_password =request.getParameter("employee_password");
String address =request.getParameter("address");
String gender=request.getParameter("gender");
String dob =(String)request.getParameter("txt_dob");
%>
24
25. • Create object form employee bean and set
values for its properties
<%
EmployeeBean emp=new EmployeeBean();
emp.setEmpId(employee_id);
emp.setEmpName(employee_name);
emp.setUserName(user_name);
emp.setPaassword(employee_password);
emp.setAddress(address);
emp.setGender(gender);
emp.setDob(dob1);
emp.setDoj(doj1);
%>
25
26. • Create object for service class and call the
method for registering the employee
<%
AddEmployeeService add= new AddEmployeeService();
String result= add.registerEmployee(emp);
%>
• Check the result and do the necessary action
if (result.equals("Success")){.
//Redirect to page for success
response.sendRedirect("Employee.jsp");
}
else{
out.println("Data not saved");
}
%>
26
28. JDBC
• The JDBC (Java Database Connectivity) API helps a Java
program to access a database in a standard way
• JDBC is a specification that specifies two things
1. tells the database vendors how to write a driver program to
interface Java programs with their database
2. tells the programmers how to write a Java program to access any
database
• A Driver written according to this standard is
called the JDBC Driver
• All related classes and interfaces are present
in the java.sql package
28
29. • The steps involved in a database interaction
are:
– Loading the specific driver(there are different
drivers for different DB)
– Making a connection to the database using the
predefined methods in the java.sql package
– Sending and executing SQL statements to the
database
– Processing the results
29
30. Step1: Load the database Driver
• Load the driver class by calling Class.forName()
with the Driver class name as an argument.
• Once loaded, the Driver class creates an instance
of itself in the memory from which it is then used
• The General format is :
Class.forName( String ClassName );
• Example :
Class.forName ("com.mysql.jdbc.Driver");
30
31. Step2: Setting Connection using Driver
Manager class
– Driver Manager Manages all the JDBC Drivers that
are loaded in the memory
– Its getConnection() method is used to establish a
connection to a database.
– It uses a username, password, and a jdbc url to
establish a connection to the database and returns
a connection object.
Connection connection
=DriverManager.getConnection (url , username,
password);
31
32. Connection conn =null;
String username = "root";
String password = "";
String url = "jdbc:mysql://localhost/project";
Class.forName ("com.mysql.jdbc.Driver");
conn = DriverManager.getConnection (url,
userName, password);
DB ip
address Database
name
32
33. Step3:Create a Statement object
• After a connection is obtained we can interact with the
database.
• We use methods defined in Connection interface for
interacting with the database via the established
connection.
• To execute SQL statements, we need to instantiate a
Statement object from the connection object by using
the createStatement() method.
Statement statement = connection.createStatement();
• A statement object is used to send and execute SQL
statements to a database.
33
34. Statement interface
• Defines methods that are used to interact with database via the execution
of SQL statements.
• The different methods are:
– executeQuery(String query) - executes an SQL statement (SELECT) that
queries a database and returns a ResultSet object.
– getResultSet() - used to retrieve the ResultSet object
– executeUpdate(String query) - executes an SQL statement (INSERT ,UPDATE
or DELETE) that updates the database and returns an integer value which
specifies the number of rows modified
– execute(String query) - executes an SQL statement that is written as String
object
34
35. ResultSet Interface
• Maintains a pointer to a row within the tabular results obtained .
• The next() method is used to iterate through the rows of the tabular
results. Initially the iterator is initialized to a position before the first row.
Hence we have to call next() once to move it to the first row.
• The different methods are:
– getBoolean(int) - Get the value of a column in the current row as a Java
boolean.
– getDouble(int) - Get the value of a column in the current row as a Java
double.
– getInt(int) - Get the value of a column in the current row as a Java int.
– getString(String)-Get value as java string
35
36. Database connection class
import java.sql.DriverManager;
import com.mysql.jdbc.Connection;
public class
{//declare connection as instance variable
public Connection conn;
public Dbconnection()
{ //constructor for the class
String url="jdbc:mysql://localhost:3306/";
String dbname=“database_name";
String driver="com.mysql.jdbc.Driver";
String dbusername="root";
String dbpassword="baabtra";
try {
Class.forName(driver).newInstance();
conn=(DriverManager.getConnection(url+dbname,dbusername,dbpassword);
System.out.println("connected......");
} catch (Exception e) {
System.out.println(e.getMessage()); 36
37. Creating DB layer
• Create a method inside AddEmployee class
public String registerEmployeeDB(EmployeeBean emp)
{
}
• Strip the object ‘emp’ to get values and store it in
variables
String employee_id=emp.getEmpId();
String employee_name=emp.getEmpName();
String user_name=emp.getUserName();
String employee_password=emp.getPaassword();
String address=emp.getAddress();
String gender=emp.getGender();
String dob=emp.getDob();
String doj=emp.getDoj();
37
39. Do the database operation for
registering the employee
//insert data into login table
String sqlQuery ="insert into tbl_login(user_name, password,role)"+
"values('"+user_name+"',
'"+employee_password+"','EMPLOY')";
int Count=st.executeUpdate(sqlQuery) ;
//Check whether data is inserted or not
if (Count>0)
{
int id=0;
//select currently inserted id (auto increment )from login table
ResultSet rs=st.executeQuery("select max(pk_login_id) as id from
tbl_login ");
while(rs.next()){
id=rs.getInt("id");
}
39
40. //Insert data to employee table
sqlQuery="insert into
tbl_employe(pk_employee,fk_loginid,emp_first_name,emp_addres, "+
"emp_gender,emp_dob,emp_doj) values('"+employee_id+"',"+
id+",'"+employee_name+"','"+
address+"','"+gender+"','"+dob+"','"+doj+"')";
int Count1=st.executeUpdate(sqlQuery);
//Return success or fail depending on status of database operation
if (Count1>0){
return "Success";
}}
else
{
return "Fail";
}
40
41. Selecting and displaying data from
database using list
• Create method for getting data in database
layer
public List getEmployeeListDB(){
//code for connecting to database
//declarea list of Employee bean
//do the database operation (select data from database)
//store the result set in the list
//pass it to service layer
}
41
42. //Declare list of employee bean
List<EmployeeBean > details=new ArrayList<EmployeeBean >();
ResultSet rs=s.executeQuery("Select * from employees");
//loop to fetch the query results one by one
while(rs.next()){
//ceating object to save each row details
EmployeeBean emp=new CustomerBean();
emp.setName(rs.getString("name"));
emp.setAddress(rs.getString("address"));
emp.setEmail(rs.getString("email"));
//adding the objects to the list object that was made
details.add(emp);
}
conn.close();
//returning the list with objects
return details;
42
43. Code in service class
import java.util.List;
import com.babte.DB.Employee;
public class EmployeeService {
public List getEmployeeListService()
{
EmployeeDB ObjEmp=new EmployeeDB();
List list=ObjEmp. getEmployeeListDB();
return list;
}
}
43
47. If this presentation helped you, please visit our
page facebook.com/baabtra and like it.
Thanks in advance.
www.baabtra.com | www.massbaab.com |www.baabte.com
48. Contact Us
Emarald Mall (Big Bazar Building)
Mavoor Road, Kozhikode,
Kerala, India.
Ph: + 91 – 495 40 25 550
NC Complex, Near Bus Stand
Mukkam, Kozhikode,
Kerala, India.
Ph: + 91 – 495 40 25 550
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Eranakulam,
Kerala, India.
Email: info@baabtra.com