Saturday, March 26, 2011
All of us know the typical three types of SQL Statement which are (DML , DCL and DDL) but they are more categorization:
1- DDL (Data Definition Language)
like Create, Alter.
2- DML (Data Manipulation Language)
like insert , update , delete
3- DCL (Data Control Language)
like : Revoke , Grant
4- DQL (Data Query Language)
Like Select with all clauses.
5- TCL (Transactional Control Language):
like Commit , RollBack
6- System Control Statements
In SQL Server : Set XYZ_OPTION TRUE
in Oracle : only one statement : ALTER SYSTEM
7- Embedded SQL Statements: It is an embedded programming into sql but not a SQL Language but each Vendor implements it in his own way.
In SQL Server: CLR integration
In Oracle: Module
Labels: SQL , Technology
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