The document summarizes best practices for using JDBC to access Oracle databases. It discusses closing JDBC objects in finally blocks, turning off auto-commit for selects, auditing platform-specific features, specifying column lists, using statement batching and fetch sizing, referencing only java.sql classes, utilizing connection pooling, and separating database access code from business logic. The document is presented by Derek C. Ashmore and covers his experience and an agenda for discussing additional JDBC best practices.
The document discusses JDBC best practices for DB2 programmers, including using prepared statements instead of statements to improve performance through dynamic caching, closing JDBC objects in finally blocks to avoid resource leaks, consolidating SQL string formation for readability and performance, and specifying column names for maintainability. It also covers limiting platform-specific features and using only java.sql classes for portability. Future directions discussed include the maturing JDBC specification and increasing use of object-relational mapping tools.
Jdbc Best Practices - Chicago Java Users Group, March 4, 2004derek_clark_ashmore
The document discusses best practices for using JDBC to access databases. It recommends closing all JDBC objects in finally blocks, using prepared statements instead of statements, consolidating SQL string formation, limiting platform-specific features, specifying column lists, referencing only java.sql classes, utilizing statement batching and query fetch sizing, using connection pooling, and being aware of issues like shared locks that can impact performance. It also provides database-specific tips for DB2 and Oracle.
The document provides an introduction to using JDBC (Java Database Connectivity) to connect to and query databases. It outlines the key components of JDBC including drivers, the basic 7 steps to using JDBC (load driver, define connection URL, establish connection, create statement, execute query, process results, close connection), and examples of connecting to Oracle and Microsoft SQL Server databases and retrieving and displaying data from the result set.
This document discusses Java Database Connectivity (JDBC) which provides Java applications with an API for accessing databases. It describes the four types of JDBC drivers: Type 1 uses JDBC-ODBC bridge, Type 2 uses native database APIs, Type 3 communicates through a middle-tier server, and Type 4 communicates directly via sockets. The document also outlines the basic steps to use JDBC for database connectivity including loading a driver, establishing a connection, creating statements, executing SQL, and processing result sets.
This document provides an overview of using JDBC (Java Database Connectivity) to connect to and query databases. It discusses the seven basic steps to using JDBC: 1) load the driver, 2) define the connection URL, 3) establish the connection, 4) create a statement object, 5) execute a query, 6) process the results, and 7) close the connection. It also provides examples of connecting to and querying databases using JDBC.
The document is a presentation about Exadata and Oracle 11gR2. It provides background on the speaker's experience with parallel query over the years. It then covers key features of Exadata storage solutions and new parallel query capabilities in 11gR2 like auto degree of parallelism and statement queuing. The presentation notes some practical considerations for implementing Exadata and parallel query, such as partitioning workloads and monitoring statement queuing.
TechEvent 2019: Status of the partnership Trivadis and EDB - Comparing Postgr...Trivadis
TechEvent 2019: Status of the partnership Trivadis and EDB - Comparing PostgreSQL to Oracle, the best kept secrets; Konrad Häfeli, Jan Karremans - Trivadis
This document discusses database application programming interfaces (APIs). It describes textual and graphical interfaces as well as call-level and embedded SQL interfaces. It provides details on vendor-specific call-level interfaces, the SQL Call Level Interface standard, and APIs like ODBC and JDBC. Examples are given showing how to connect to a database and execute queries using JDBC. Prepared statements in JDBC are also demonstrated. Finally, embedded SQL is briefly explained.
The document discusses JDBC best practices for DB2 programmers, including using prepared statements instead of statements to improve performance through dynamic caching, closing JDBC objects in finally blocks to avoid resource leaks, consolidating SQL string formation for readability and performance, and specifying column names for maintainability. It also covers limiting platform-specific features and using only java.sql classes for portability. Future directions discussed include the maturing JDBC specification and increasing use of object-relational mapping tools.
Jdbc Best Practices - Chicago Java Users Group, March 4, 2004derek_clark_ashmore
The document discusses best practices for using JDBC to access databases. It recommends closing all JDBC objects in finally blocks, using prepared statements instead of statements, consolidating SQL string formation, limiting platform-specific features, specifying column lists, referencing only java.sql classes, utilizing statement batching and query fetch sizing, using connection pooling, and being aware of issues like shared locks that can impact performance. It also provides database-specific tips for DB2 and Oracle.
The document provides an introduction to using JDBC (Java Database Connectivity) to connect to and query databases. It outlines the key components of JDBC including drivers, the basic 7 steps to using JDBC (load driver, define connection URL, establish connection, create statement, execute query, process results, close connection), and examples of connecting to Oracle and Microsoft SQL Server databases and retrieving and displaying data from the result set.
This document discusses Java Database Connectivity (JDBC) which provides Java applications with an API for accessing databases. It describes the four types of JDBC drivers: Type 1 uses JDBC-ODBC bridge, Type 2 uses native database APIs, Type 3 communicates through a middle-tier server, and Type 4 communicates directly via sockets. The document also outlines the basic steps to use JDBC for database connectivity including loading a driver, establishing a connection, creating statements, executing SQL, and processing result sets.
This document provides an overview of using JDBC (Java Database Connectivity) to connect to and query databases. It discusses the seven basic steps to using JDBC: 1) load the driver, 2) define the connection URL, 3) establish the connection, 4) create a statement object, 5) execute a query, 6) process the results, and 7) close the connection. It also provides examples of connecting to and querying databases using JDBC.
The document is a presentation about Exadata and Oracle 11gR2. It provides background on the speaker's experience with parallel query over the years. It then covers key features of Exadata storage solutions and new parallel query capabilities in 11gR2 like auto degree of parallelism and statement queuing. The presentation notes some practical considerations for implementing Exadata and parallel query, such as partitioning workloads and monitoring statement queuing.
TechEvent 2019: Status of the partnership Trivadis and EDB - Comparing Postgr...Trivadis
TechEvent 2019: Status of the partnership Trivadis and EDB - Comparing PostgreSQL to Oracle, the best kept secrets; Konrad Häfeli, Jan Karremans - Trivadis
This document discusses database application programming interfaces (APIs). It describes textual and graphical interfaces as well as call-level and embedded SQL interfaces. It provides details on vendor-specific call-level interfaces, the SQL Call Level Interface standard, and APIs like ODBC and JDBC. Examples are given showing how to connect to a database and execute queries using JDBC. Prepared statements in JDBC are also demonstrated. Finally, embedded SQL is briefly explained.
The document discusses the Data Access Object (DAO) pattern in J2EE applications. The DAO pattern separates business logic from data access logic. A DAO provides a common interface to access a data source. The DAO encapsulates data source access and manages data transfer objects (DTOs) that are used to exchange data between business objects and the DAO. Sample code illustrates a DAO interface, implementation, DTO, and client using the DAO to access inventory data without coupling to the specific data source implementation.
JDBC provides a standard library for accessing relational databases. It determines column metadata and handles queries but does not standardize SQL syntax. JDBC consists of an API and driver manager that communicates with vendor-specific drivers. JPA is a standard ORM specification that maps POJOs to database tables and handles synchronization, transactions, and performance. It defines entity classes, entity managers, and persistence units configured in persistence.xml.
The document discusses Hibernate, an object-relational mapping tool that transforms data between object representation and relational databases. It describes Hibernate's architecture, important definitions like SessionFactory and Session, configuration options including programmatic and XML configuration, mapping declarations, and persistent classes.
This document provides an overview of using Hibernate, an object-relational mapping tool, to connect XPages applications to relational databases. It discusses the benefits of using relational databases and Hibernate over the Domino API. The document outlines Hibernate concepts like entities, configuration, querying, and mapping objects to tables. It also provides instructions for downloading and installing Hibernate and adding it to a Domino application. The presenter encourages using proven libraries and tools to make development easier.
In this Java JSP Training session, you will learn JSP. Topics covered in this session are:
• JSP (Java Server Pages Technology)
• JSP vs Servlet
• MVC Architecture
• Scriplet
For more information, visit this link:
https://www.mindsmapped.com/courses/software-development/jsp-and-servlets-designing-web-applications-with-java/
The document provides an overview of distributed caching with Coherence, JPA with TopLink Grid, and integrating Coherence with WebLogic Server. It discusses Coherence clustering, data management options like partitioned caching, data processing options like events and queries, how TopLink Grid allows scaling JPA applications using the Coherence data grid, and how Coherence servers integrate with the WebLogic lifecycle.
Persistence is the storage of data that exists beyond a single session or process. There are three main ways to persist data using Hibernate: JDBC, Spring JDBC, and Hibernate itself. Hibernate provides an object-relational mapping tool that allows developers to treat a database as a collection of Java objects and provides transparent data persistence. It abstracts away many of the complexities of directly using JDBC.
Create non-cdb (traditional) oracle database 12c on windowsBiju Thomas
The document provides steps to create a non-CDB Oracle 12c database on Windows using the Database Configuration Assistant (DBCA). It describes opening DBCA, selecting the default configuration option, and reviewing the database configuration summary. It also shows checking options like sample schemas and changing to advanced mode to see additional screens.
Connection pooling optimizes the time required to establish a connection with a database by creating a pool of reusable connections. It initially takes time to set up the connection pool but avoids repeatedly opening and closing connections, instead returning existing open connections from the pool. Most JDBC drivers and application servers support connection pooling through connection pool utilities like Apache Commons DBCP which is used to pool JDBC connections from a pool managed by the application server.
The document provides an overview of Java EE 7 APIs supported in WebLogic Server 12c, including JAX-RS 2.0, JSON Processing API 1.0, Java Persistence API 2.1, and Java API for WebSocket 1.0. It discusses how these APIs are enabled and configured in WebLogic 12c. It also describes key features of the APIs such as asynchronous processing in JAX-RS 2.0, schema generation in JPA 2.1, and developing WebSocket applications using the Java API for WebSocket 1.0.
IaC MeetUp Active Directory Setup for Oracle Security LABStefan Oehrli
There is always that one problem that you want to analyze or that new feature that you briefly want to test. But often you lack a corresponding LAB environment. Especially if several systems and services like MS Active Directory have to be tested in combination. In this presentation we will show how IaC, scripts etc. can be used to create LAB environments quickly and easily. We will show how to configure VMs with Vagrant to test specific topics like Oracle Database Integration with Active Directory. In addition to Vagrant, we will also take a brief look at Docker Containers and Terraform Deployment on OCI, and see how you can create a corresponding LAB environment with moderate effort. The presentation will be complemented by corresponding demos and examples.
Best practices for_large_oracle_apps_r12_implementationsAjith Narayanan
This document provides an agenda and overview for a presentation on best practices for large Oracle Applications R12 implementations. The agenda covers application tier topics like technology stack, Forms, response time issues, and patching. It also covers database tier topics like CPU utilization, I/O, diagnostics, SQL tuning, and using Oracle RAC. The goal is to make the environment proactive, simple to manage, and reduce support/maintenance costs through established best practices.
The document provides an overview of asynchronous messaging using Oracle Queues, including Oracle AQ, Oracle JMS, and WebLogic JMS. It discusses how to create queues in each technology, access queues to enqueue and dequeue messages via programming interfaces, and compares the performance of each approach based on testing.
Exadata and the Oracle Optimizer: The Untold StoryEnkitec
The document discusses how the Oracle optimizer can select suboptimal plans on Exadata due to not properly accounting for the faster speeds of full table scans enabled by Exadata's offloading capabilities and storage compression. It explains how updating statistics to reflect Exadata's multi-block read capabilities and gathering new system statistics can help the optimizer generate better plans that leverage Exadata's performance features.
Dịch vụ : Thiết kế website (http://www.web360.com.vn/) - Dịch vụ thiết kế web khách sạn (http://web360.com.vn/Thiet-ke-Web-khach-san.html)
Web360 công ty thiết kế web với nhiều năm kinh nghiệm , chúng tôi cung cấp các giải pháp dành cho những khách hàng có nhu cầu xây dựng website để đẩy mạnh công việc kinh doanh, mở rộng các kênh bán hàng, tăng cường khả năng giao tiếp với khách hàng hoặc muốn khẳng định đẳng cấp hoặc thương hiệu của công ty.
Thiết kế web giá rẻ nhất đà nẵng(http://web360.com.vn/Thiet-ke-web-gia-re-da-nang.html)
DỊCH VỤ THIẾT KẾ WEB CHUYÊN NGHIỆP CỦA CHÚNG TÔI NHƯ SAU :
1. Giao diện website được thiết kế đẹp mắt, chuyên nghiệp.
2. Website được nghiên cứu kỹ các đối tượng khách hàng, phân tích nhu cầu, thói quen và hành vi của họ khi duyệt web để xây dựng các chức năng và nội dung phù hợp nhằm biến họ trở thành khách hàng thực sự của bạn.
3. Nghiên cứu rất kỹ các đối thủ cạnh tranh của bạn trên mạngi internet và sẽ tư vấn cho bạn cách để bạn vượt qua họ.
4. Các chuyên gia của chúng tôi cũng sẽ tư vấn cho bạn cách viết nội dung và sử dụng những từ khóa có giá trị nhằm thu hút và giữ chân khách hàng, đồng thời tạo thiện cảm cho các công cụ tìm kiếm.
5. Tối ưu hóa công cụ tìm kiếm chuẩn SEO google
Liên hệ với chúng tôi để được tư vấn thiết kế web tại Đà Nẵng tận tình nhất !
Thiet ke web da nang - Cong ty thiet ke web tai da nang (http://web360.com.vn/Thiet-ke-web-Da-Nang.html)
Liên hệ : 090.52.52.360 - 0905.595.360(Mr Hoàng)
Email : info@web360.com.vn (info@web360.com.vn)
Website : www.web360.com.vn (http://web360.com.vn/)
Địa chỉ : 44 Ngô Chi Lan - Q.Hải Châu - TP.Đà Nẵng
Chúng tôi luôn nỗ lực đem lại cho khách hàng những sản phẩm và dịch vụ tốt nhất !
dịch vụ,thiết kế,thiết kế web,chuyên nghiệp,dịch vụ thiết kế,dịch vụ thiết kế web đà nẵng
This document discusses using Oracle Enterprise Manager and My Oracle Support to work with Oracle support. It covers viewing critical alerts, gathering diagnostic information, creating service requests, applying patches, and more. The key steps are: 1) View critical alerts in Enterprise Manager, 2) Gather additional diagnostic information, 3) Create a service request, 4) Package and upload diagnostic data to Oracle Support, 5) Track the service request and implement repairs.
Hibernate Performance Tuning, presented on JEEConf 2012, Kiev, Ukraine.
Also see: http://branchandbound.net/blog/conferences/2012/05/jeeconf-tripreport/
Adaptation of presentation at http://www.slideshare.net/SanderMak/hibernate-performance-tuning
Aws Lambda for Java Architects CJug-Chicago 2016-08-30Derek Ashmore
This document provides an overview and agenda for a presentation on AWS Lambda for Java architects. The presentation covers:
- What AWS Lambdas are and their benefits and limitations
- Developing Lambda functions in Java, including implementing request handlers and using the execution context
- Tools for supporting Lambda functions, such as logging and third party libraries
- Using Lambdas for microservices and event-driven architectures
The agenda includes sections on the "What" and "Why" of AWS Lambda, developing Lambda functions, supporting Lambda functions, using Lambdas for microservices, and a summary with Q&A. Sample code examples are provided on the speaker's GitHub page.
Refactoring Into Microservices 2016-11-08Derek Ashmore
Derek C. Ashmore gave a presentation on refactoring a monolithic application into microservices. He defined what a monolith is and the problems it can cause, such as being hard to change and having long test cycles. Ashmore discussed how breaking a monolith into smaller microservices can increase speed to market and lower business risk. He provided tactics for different types of monoliths, such as separating a user interface or factoring out independent services. Common challenges like handling shared code and reporting were also addressed.
AWS Lambda Deployments: Best Practices and Common Mistakes O'Reilly Software...Derek Ashmore
Derek C. Ashmore gave a presentation on AWS Lambda deployments, best practices, and common mistakes. The presentation covered what AWS Lambdas are, their benefits and limitations, developing Lambda functions using different programming languages, deploying Lambdas using API Gateway and SNS, and tales from the field about common issues. The presentation provided resources for sample code and addressed questions about performance, using Lambdas for microservices, and the future of serverless computing.
The document discusses the Data Access Object (DAO) pattern in J2EE applications. The DAO pattern separates business logic from data access logic. A DAO provides a common interface to access a data source. The DAO encapsulates data source access and manages data transfer objects (DTOs) that are used to exchange data between business objects and the DAO. Sample code illustrates a DAO interface, implementation, DTO, and client using the DAO to access inventory data without coupling to the specific data source implementation.
JDBC provides a standard library for accessing relational databases. It determines column metadata and handles queries but does not standardize SQL syntax. JDBC consists of an API and driver manager that communicates with vendor-specific drivers. JPA is a standard ORM specification that maps POJOs to database tables and handles synchronization, transactions, and performance. It defines entity classes, entity managers, and persistence units configured in persistence.xml.
The document discusses Hibernate, an object-relational mapping tool that transforms data between object representation and relational databases. It describes Hibernate's architecture, important definitions like SessionFactory and Session, configuration options including programmatic and XML configuration, mapping declarations, and persistent classes.
This document provides an overview of using Hibernate, an object-relational mapping tool, to connect XPages applications to relational databases. It discusses the benefits of using relational databases and Hibernate over the Domino API. The document outlines Hibernate concepts like entities, configuration, querying, and mapping objects to tables. It also provides instructions for downloading and installing Hibernate and adding it to a Domino application. The presenter encourages using proven libraries and tools to make development easier.
In this Java JSP Training session, you will learn JSP. Topics covered in this session are:
• JSP (Java Server Pages Technology)
• JSP vs Servlet
• MVC Architecture
• Scriplet
For more information, visit this link:
https://www.mindsmapped.com/courses/software-development/jsp-and-servlets-designing-web-applications-with-java/
The document provides an overview of distributed caching with Coherence, JPA with TopLink Grid, and integrating Coherence with WebLogic Server. It discusses Coherence clustering, data management options like partitioned caching, data processing options like events and queries, how TopLink Grid allows scaling JPA applications using the Coherence data grid, and how Coherence servers integrate with the WebLogic lifecycle.
Persistence is the storage of data that exists beyond a single session or process. There are three main ways to persist data using Hibernate: JDBC, Spring JDBC, and Hibernate itself. Hibernate provides an object-relational mapping tool that allows developers to treat a database as a collection of Java objects and provides transparent data persistence. It abstracts away many of the complexities of directly using JDBC.
Create non-cdb (traditional) oracle database 12c on windowsBiju Thomas
The document provides steps to create a non-CDB Oracle 12c database on Windows using the Database Configuration Assistant (DBCA). It describes opening DBCA, selecting the default configuration option, and reviewing the database configuration summary. It also shows checking options like sample schemas and changing to advanced mode to see additional screens.
Connection pooling optimizes the time required to establish a connection with a database by creating a pool of reusable connections. It initially takes time to set up the connection pool but avoids repeatedly opening and closing connections, instead returning existing open connections from the pool. Most JDBC drivers and application servers support connection pooling through connection pool utilities like Apache Commons DBCP which is used to pool JDBC connections from a pool managed by the application server.
The document provides an overview of Java EE 7 APIs supported in WebLogic Server 12c, including JAX-RS 2.0, JSON Processing API 1.0, Java Persistence API 2.1, and Java API for WebSocket 1.0. It discusses how these APIs are enabled and configured in WebLogic 12c. It also describes key features of the APIs such as asynchronous processing in JAX-RS 2.0, schema generation in JPA 2.1, and developing WebSocket applications using the Java API for WebSocket 1.0.
IaC MeetUp Active Directory Setup for Oracle Security LABStefan Oehrli
There is always that one problem that you want to analyze or that new feature that you briefly want to test. But often you lack a corresponding LAB environment. Especially if several systems and services like MS Active Directory have to be tested in combination. In this presentation we will show how IaC, scripts etc. can be used to create LAB environments quickly and easily. We will show how to configure VMs with Vagrant to test specific topics like Oracle Database Integration with Active Directory. In addition to Vagrant, we will also take a brief look at Docker Containers and Terraform Deployment on OCI, and see how you can create a corresponding LAB environment with moderate effort. The presentation will be complemented by corresponding demos and examples.
Best practices for_large_oracle_apps_r12_implementationsAjith Narayanan
This document provides an agenda and overview for a presentation on best practices for large Oracle Applications R12 implementations. The agenda covers application tier topics like technology stack, Forms, response time issues, and patching. It also covers database tier topics like CPU utilization, I/O, diagnostics, SQL tuning, and using Oracle RAC. The goal is to make the environment proactive, simple to manage, and reduce support/maintenance costs through established best practices.
The document provides an overview of asynchronous messaging using Oracle Queues, including Oracle AQ, Oracle JMS, and WebLogic JMS. It discusses how to create queues in each technology, access queues to enqueue and dequeue messages via programming interfaces, and compares the performance of each approach based on testing.
Exadata and the Oracle Optimizer: The Untold StoryEnkitec
The document discusses how the Oracle optimizer can select suboptimal plans on Exadata due to not properly accounting for the faster speeds of full table scans enabled by Exadata's offloading capabilities and storage compression. It explains how updating statistics to reflect Exadata's multi-block read capabilities and gathering new system statistics can help the optimizer generate better plans that leverage Exadata's performance features.
Dịch vụ : Thiết kế website (http://www.web360.com.vn/) - Dịch vụ thiết kế web khách sạn (http://web360.com.vn/Thiet-ke-Web-khach-san.html)
Web360 công ty thiết kế web với nhiều năm kinh nghiệm , chúng tôi cung cấp các giải pháp dành cho những khách hàng có nhu cầu xây dựng website để đẩy mạnh công việc kinh doanh, mở rộng các kênh bán hàng, tăng cường khả năng giao tiếp với khách hàng hoặc muốn khẳng định đẳng cấp hoặc thương hiệu của công ty.
Thiết kế web giá rẻ nhất đà nẵng(http://web360.com.vn/Thiet-ke-web-gia-re-da-nang.html)
DỊCH VỤ THIẾT KẾ WEB CHUYÊN NGHIỆP CỦA CHÚNG TÔI NHƯ SAU :
1. Giao diện website được thiết kế đẹp mắt, chuyên nghiệp.
2. Website được nghiên cứu kỹ các đối tượng khách hàng, phân tích nhu cầu, thói quen và hành vi của họ khi duyệt web để xây dựng các chức năng và nội dung phù hợp nhằm biến họ trở thành khách hàng thực sự của bạn.
3. Nghiên cứu rất kỹ các đối thủ cạnh tranh của bạn trên mạngi internet và sẽ tư vấn cho bạn cách để bạn vượt qua họ.
4. Các chuyên gia của chúng tôi cũng sẽ tư vấn cho bạn cách viết nội dung và sử dụng những từ khóa có giá trị nhằm thu hút và giữ chân khách hàng, đồng thời tạo thiện cảm cho các công cụ tìm kiếm.
5. Tối ưu hóa công cụ tìm kiếm chuẩn SEO google
Liên hệ với chúng tôi để được tư vấn thiết kế web tại Đà Nẵng tận tình nhất !
Thiet ke web da nang - Cong ty thiet ke web tai da nang (http://web360.com.vn/Thiet-ke-web-Da-Nang.html)
Liên hệ : 090.52.52.360 - 0905.595.360(Mr Hoàng)
Email : info@web360.com.vn (info@web360.com.vn)
Website : www.web360.com.vn (http://web360.com.vn/)
Địa chỉ : 44 Ngô Chi Lan - Q.Hải Châu - TP.Đà Nẵng
Chúng tôi luôn nỗ lực đem lại cho khách hàng những sản phẩm và dịch vụ tốt nhất !
dịch vụ,thiết kế,thiết kế web,chuyên nghiệp,dịch vụ thiết kế,dịch vụ thiết kế web đà nẵng
This document discusses using Oracle Enterprise Manager and My Oracle Support to work with Oracle support. It covers viewing critical alerts, gathering diagnostic information, creating service requests, applying patches, and more. The key steps are: 1) View critical alerts in Enterprise Manager, 2) Gather additional diagnostic information, 3) Create a service request, 4) Package and upload diagnostic data to Oracle Support, 5) Track the service request and implement repairs.
Hibernate Performance Tuning, presented on JEEConf 2012, Kiev, Ukraine.
Also see: http://branchandbound.net/blog/conferences/2012/05/jeeconf-tripreport/
Adaptation of presentation at http://www.slideshare.net/SanderMak/hibernate-performance-tuning
Aws Lambda for Java Architects CJug-Chicago 2016-08-30Derek Ashmore
This document provides an overview and agenda for a presentation on AWS Lambda for Java architects. The presentation covers:
- What AWS Lambdas are and their benefits and limitations
- Developing Lambda functions in Java, including implementing request handlers and using the execution context
- Tools for supporting Lambda functions, such as logging and third party libraries
- Using Lambdas for microservices and event-driven architectures
The agenda includes sections on the "What" and "Why" of AWS Lambda, developing Lambda functions, supporting Lambda functions, using Lambdas for microservices, and a summary with Q&A. Sample code examples are provided on the speaker's GitHub page.
Refactoring Into Microservices 2016-11-08Derek Ashmore
Derek C. Ashmore gave a presentation on refactoring a monolithic application into microservices. He defined what a monolith is and the problems it can cause, such as being hard to change and having long test cycles. Ashmore discussed how breaking a monolith into smaller microservices can increase speed to market and lower business risk. He provided tactics for different types of monoliths, such as separating a user interface or factoring out independent services. Common challenges like handling shared code and reporting were also addressed.
AWS Lambda Deployments: Best Practices and Common Mistakes O'Reilly Software...Derek Ashmore
Derek C. Ashmore gave a presentation on AWS Lambda deployments, best practices, and common mistakes. The presentation covered what AWS Lambdas are, their benefits and limitations, developing Lambda functions using different programming languages, deploying Lambdas using API Gateway and SNS, and tales from the field about common issues. The presentation provided resources for sample code and addressed questions about performance, using Lambdas for microservices, and the future of serverless computing.
Microservices for Java Architects (Indianapolis, April 15, 2015)Derek Ashmore
Slide deck for presentation given to the Indianapolis Java Users Group on April 15, 2015.
For some reason, Slideshare doesn't like the hyper-links in the presentation. Here's a PDF version for which the hyper-links work: https://drive.google.com/file/d/0BywOAPVO4FvATEZ5V052a2lrZEk/view?usp=sharing
Microservices for architects los angeles-2016-07-16Derek Ashmore
Derek C. Ashmore gave a presentation on microservices where he discussed: the definition and benefits of microservices; design considerations like service boundaries, failure handling patterns, and addressing cross-cutting concerns; when microservices make sense to use; and common mistakes to avoid like inappropriate service boundaries. The presentation provided examples of code and further resources on microservices.
Microservices for java architects it-symposium-2015-09-15Derek Ashmore
This document provides an overview of microservices for Java architects by Derek Ashmore. It begins by introducing Ashmore and his background. The document then discusses what microservices are, how they differ from traditional monolithic architectures, and considerations for designing microservices like service boundaries, handling failures, ensuring data integrity and performance. It also covers packaging and deployment options for microservices like Spring Boot and Docker. Finally, it addresses some common misconceptions about microservices and provides additional resources for further reading.
Refactoring Into Microservices 2016-11-06Derek Ashmore
This presentation was given to the Software Development Community (SDC) on November 6, 2016.
Microservices architecture has become a widely popular topic. Most of us are aware of what microservices are and the problems they are meant to solve. Most microservice implementations were originally monolithic applications that grew too large and complex to support. However, refactoring into microservices is much easier said than done.
This presentation will provide you guidance for refactoring a monolithic application into microservices. I'll provide an overview of the entire process along with best practices and common mistakes along the way. This presentation is meant to be platform-generic; you can use these concepts on applications written in any programming language. This presentation is targeted for senior developers and tech leads.
Aws Lambda for Java Architects - JavaOne -2016-09-19Derek Ashmore
Derek C. Ashmore gave a presentation on AWS Lambda for Java architects. He began with an introduction of himself and his background. The presentation covered what AWS Lambda is, how to develop Lambda functions in Java, tools to support Lambda development, using Lambdas for microservices, and answered chief complaints about Lambda. Ashmore provided implementation tips and pointed to additional resources for further reading on AWS Lambda.
Aws Lambda for Java Architects - Illinois JUG-Northwest -2016-08-02Derek Ashmore
Derek C. Ashmore presented on AWS Lambda for Java architects. He began with an overview of what AWS Lambdas are, which are custom codes that AWS runs on demand in a serverless computing model. Lambdas are event-driven and stateless. He then discussed developing Lambda functions using the RequestHandler interface in Java, deploying Lambda code, and supporting resources for Lambdas. Ashmore also covered using Lambdas for microservices and common patterns. In the question period, he acknowledged that Lambda documentation is lacking and cold start times can be inconsistent, while stateful optimizations are difficult.
An Unexpected Solution to Microservices UI CompositionDr. Arif Wider
This document describes a company's transition from a monolithic .NET application to a microservices architecture hosted on AWS. It details their use of a UI composition pattern using Nginx, ESI, and Jigsaw to compose fragments from different services into complete pages. This allows independent deployment of features while maintaining performance. Key aspects include caching of assets and responses, combining stylesheets and scripts, and isolation of services through separate CSS and JS packages.
Step-by-Step: APEX Installation on Tomcat (Windows Server 2016)sheriframadan18
This is a practical workshop about deploying the Oracle APEX application in the Apache Tomcat Server from your local machine.
Apache Tomcat, being a Java-based application requires Java to be installed in your local and you will be learning how to set up Java to start the server without any issues.
The setup process will be smooth as Apache Tomcat is a lightweight application. With Tomcat being installed, you will learn the connection between APEX-ORDS-Tomcat.
You will get to know the system requirements for installing Oracle APEX.
You will learn the installation process of Oracle Database, APEX, and ORDS on your local machine. The installation will help you to know the role of ORDS and which is necessary for deployment in Apache Tomcat.
Cloud Conference Day - A High-Speed Data Ingestion Service in Java Using MQTT...Juarez Junior
This document summarizes a presentation about ingesting data using various messaging protocols like MQTT, AMQP, and STOMP. It discusses ingesting data reactively using Reactive Streams and ingesting data using virtual threads. It also demonstrates using Oracle R2DBC for reactive database access and shows how to ingest data into Oracle Database using Reactive Streams Ingestion (RSI).
This document provides instructions for installing Oracle XE with ORDS and configuring it to run on Apache Tomcat or Oracle Glassfish Server. It discusses the benefits of using ORDS over mod_plsql, including increased functionality and flexibility. It then provides step-by-step guides for installing Glassfish Server, Apache Tomcat Server, setting up ORDS, and configuring each web server with ORDS. Key steps include deploying the ords.war and i.war files, and accessing APEX over ORDS at specific URLs for each server.
BarcelonaJUG - A High-Speed Data Ingestion Service in Java Using MQTT, AMQP, ...Juarez Junior
This document provides a summary of a presentation on high-speed data ingestion services in Java using MQTT, AMQP, and STOMP. The presentation discusses using virtual threads and reactive streams for ingesting data. It also demonstrates Oracle's Reactive Streams Ingestion library and R2DBC driver for reactive programming with Oracle Database. The document references various messaging protocols and provides code samples for consuming messages from ActiveMQ using JMS.
DWX23 - Revolutionize Java DB AppDev with Reactive Streams and Virtual ThreadsJuarez Junior
The document discusses how to revolutionize Java database application development with reactive streams and virtual threads. It covers using Oracle JDBC and R2DBC drivers to access Oracle Database asynchronously and reactively. Demos are provided comparing traditional threading to virtual threads and showing reactive streams ingestion and Oracle R2DBC with Project Reactor. The presentation also promotes Oracle's free developer tools and cloud accounts.
CloudLand - Revolutionize Java DB AppDev with Reactive Streams and Virtual Th...Juarez Junior
The document discusses revolutionizing Java database application development with reactive streams and virtual threads. It introduces the speaker and covers supporting the latest Java versions with Oracle Database, an overview of accessing Oracle DB with Java, Oracle JDBC synchronous and asynchronous usage, classic Java threads versus virtual threads, demos of virtual threads and reactive streams ingestion, moving from synchronous to reactive JDBC with Oracle R2DBC, and references for further information.
The document provides an overview of Entity Framework and Code First approach. It discusses the key features of Entity Framework including object-relational mapping, support for various databases, and using LINQ queries. It also covers the advantages of Entity Framework like productivity, maintainability and performance. Furthermore, it explains the different domain modeling approaches in Entity Framework - Model First, Database First and Code First along with code examples.
Data access patterns and technologies are discussed. The Data Access Object (DAO) pattern separates data access from business logic. Spring JDBC and myBatis provide APIs for SQL queries and object mapping. Object-relational mapping (ORM) tools like Hibernate reduce code by mapping objects to relational databases but can reduce performance. JDBC template provides basic data access while frameworks offer additional features.
EJB 3.0 Java Persistence with Oracle TopLinkBill Lyons
This document discusses using Oracle TopLink as a persistence framework with Java Persistence API (JPA) and EJB 3.0. It provides an overview of setting up a TopLink project in JDeveloper, generating entity objects and a session bean, and performing basic CRUD operations. The document demonstrates how to query, insert, update, and delete data using the TopLink APIs.
The presentation introduces SQLCLR, which allows developers to write .NET code in SQL Server 2005. It discusses developing and managing SQLCLR applications, monitoring performance, and best practices. SQLCLR enables rich functionality within the database by running .NET code, but also presents security and management challenges that require care and oversight. The speaker demonstrates examples of SQLCLR applications and stresses the importance of transparency, testing, and teamwork between developers and database administrators.
The presentation introduces SQLCLR, which allows developers to write .NET code in SQL Server 2005. It discusses developing and managing SQLCLR applications, monitoring performance, and best practices. SQLCLR enables rich functionality within the database by running .NET code, but requires careful management to avoid potential security and performance issues. The speaker demonstrates examples using SQLCLR for string manipulation and custom aggregates.
This document discusses the data access layer (DAL) in .NET applications. The DAL is responsible for persisting the application's object model to the database in a configurable and database-independent way. It handles object-relational mapping and transaction management. The core .NET library used for database access is ADO.NET, which includes classes for connections, commands, data readers, and data adapters. Unit testing the DAL validates its behavior using assertions.
CloudLand - A High-Speed Data Ingestion Service in Java Using MQTT, AMQP, and...Juarez Junior
This document discusses a high-speed data ingestion service in Java using MQTT, AMQP, and STOMP messaging protocols. It provides an overview of message-oriented middleware (MOM), describes the MQTT, AMQP, and STOMP protocols, and demonstrates consuming messages from ActiveMQ using JMS.
This document provides an overview of relational database programming using ADO.NET. It discusses relational database systems and SQL, connecting applications to databases, using database objects like commands and readers, and executing statements. Key topics covered include relational models, SQL, database constraints, ADO.NET providers and objects, parameterized commands, and transactions.
DWX23 - A High-Speed Data Ingestion Service in Java Using MQTT, AMQP, and STO...Juarez Junior
This document discusses a high-speed data ingestion service in Java using MQTT, AMQP, and STOMP messaging protocols. It describes messaging-oriented middleware, various messaging protocols like AMQP, MQTT, and STOMP. It also demonstrates a reactive streams ingestion library, Oracle R2DBC driver, and a demo application architecture for ingesting data from different sources into an Oracle database using these technologies in a reactive and non-blocking way.
This document provides an overview of Java Database Connectivity (JDBC) in 3 sentences or less:
JDBC allows Java programs to connect to and interact with various database systems and provides a standard API for querying and manipulating data in relational databases. The key components of JDBC include the DriverManager, Connection, Statement, and ResultSet objects, and connecting to a database typically involves 4 steps - loading a driver, opening a connection, executing SQL statements via a Statement object, and processing result sets. JDBC offers database independence and ease of administration along with the ability to access any database from Java applications.
Seminar Sehari
PHP Indonesia
Saturday, 5th May 2012
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