Skip to main content

Communicating with a RDBMS Using SQL

What is SQL?

SQL Stands for Structured Query Language. It is the international standard language for relational database management systems. It is useful for accessing and manipulating data in a databases. 

To access the database, you execute a structured query language (SQL) statement, which is the
American National Standards Institute (ANSI) standard language for operating relational databases.

Comments

Post a Comment

Popular posts from this blog

Oracle Reports - Changing the current mode (Confine or Flex)

To set or override Confine mode:  In the Paper Layout view, click  Confine On or Confine Off  in the toolbar to toggle the mode: On: child objects cannot be moved outside their enclosing parent objects. Off: child objects can be moved outside their enclosing parent objects. To set or override Flex mode:  In the Paper Layout view, click  Flex On or  Flex Off in the toolbar to toggle the mode: On: parent borders "stretch" when child objects are moved against them. The child object maintains the same distance from the side it moves against. Off: parent borders remain fixed when child objects are moved against them.
Post a Comment
Read more

Difference Between CASE and DECODE?

– CASE is a expression – DECODE is a function - CASE expression is ANSI SQL Statement - DECODE is specific to Oracle Syntax - CASE syntax contains WHEN and THEN  - DECODE will not have this - CASE allow expressions or Scalar Sub query Expressions inside the CASE statement - DECODE won't allow expressions inside the DECODE function
1 comment
Read more