Structured Query Language (SQL) |
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DDL : Data Definition Language (DDL) refers to the command types ,
which are used to define the database structure or schema. Some
examples :
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DML :Data Manipulation Language refers to
the command type, which are are used for managing data within schema
objects. Some examples:
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DCL : Data Control Language (DCL) statements. Some
examples: GRANT - gives user's access privileges to database REVOKE - withdraw access privileges given with the GRANT command |
TCL : Transaction Control (TCL) statements are used to manage the
changes made by DML statements. It allows statements to be grouped
together into logical transactions.
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