This document discusses SQL and PL/SQL. It begins by listing group members and the contents, which include what SQL and PL/SQL are, their differences, and usage of different syntax. SQL is introduced as a query language to specify conditions to retrieve data, while PL/SQL is a programming language that uses variables, loops and operators. Key differences outlined are that SQL is for data manipulation while PL/SQL is for building applications, SQL is declarative while PL/SQL is procedural, and SQL can be embedded in PL/SQL but not vice versa. Basic syntax examples are provided for SQL statements like UPDATE, DELETE, INSERT, and SELECT, and for the structure of a PL/SQL block with declarations, executable commands, and

2. Group members
 RAJA MOSHIN
 KAMAR KHATEEB
 Syed Ahmad Mothasim Billa
 ABDUL REHMAN AZAM

3. CONTENTS
 What is SQL
 What is PL/SQL
 Different between SQL & PL/SQL
 Usage different syntax
 video

4. topic
Different d/w

5. Introduction of SQL
What is SQL
 SQL is a query language that allows user to specify the conditions. (instead of algorithms)

6. What is PL-SQL
 PL-SQL is a programming language SQL, used to write full programs
using variables, loops,operators etc.

7. Different d/w SQL and PL/SQL
 SQL may be considered as the source of data for our reports,
web pages and screens.
 PL/SQL can be considered as the application language similar
to Java or PHP. It might be the language used to build,
format and display those reports, web pages and screens

8. Different d/w SQL and PL/SQL
 SQL is a data oriented language used to select and manipulate
sets of data.
 PL/SQL is a procedural language used to create applications.

9. Different d/w SQL and PL/SQL
 SQL is used to write queries, DDL and DML statements.
 PL/SQL is used to write program blocks, functions, procedures
triggers, and packages.

10. Different d/w SQL and PL/SQL
 SQL is declarative, i.e., it tells the database what to do but not
how to do it.
 Whereas, PL/SQL is procedural, i.e., it tells the database how
to do things.
 SQL can be embedded within a PL/SQL program.
But PL/SQL can’t be embedded within a SQL statement.

11. TABLE

12. SQL UPDATE Syntax
Syntax
 UPDATE table name
SET column1=value1,column2=value2,...
WHERE some_column=some_value;
 Example
 UPDATE Customers
SET ContactName='Juan'
WHERE Country='Mexico';

13. SQL DELETE Syntax
 DELETE FROM table_name
WHERE some_column=some_value;
 Example
 DELETE FROM Customers
WHERE CustomerName='Alfreds Futterkiste' AND ContactName='Maria
Anders';

14. SQL INSERT INTO Syntax
 INSERT INTO table_name
VALUES (value1,value2,value3,...);
example
 INSERT INTO Customers (CustomerName, ContactName, Address, City,
PostalCode, Country)
VALUES ('Cardinal','Tom B. Erichsen','Skagen
21','Stavanger','4006','Norway');

15. SQL SELECT Syntax
 SELECT column_name,column_name
FROM table_name;
Example
 SELECT * FROM Customers;

16. describes the PL/SQL basic syntax
 PL/SQL is a block-structured language, meaning that PL/SQL programs are
divided and written in logical blocks of code. Each block consists of three sub-
 Declarations
This section starts with the keyword DECLARE
 Executable Commands
This section is enclosed between the keywords BEGIN and END and it is a
mandatory section.
 Exception Handling
 This section starts with the keyword EXCEPTION

17. Every PL/SQL statement ends with a semicolon (;). PL/SQL blocks
can be nested within other PL/SQL blocks using BEGIN and END.
Here is the basic structure of a PL/SQL block:

18. AT last this Video will explain What is
Database & SQL? Detail

20. References
 http://www.w3schools.com
 http://www.slideshare.net/
 http://www.youtube.com