Processing
Skills of SQL
The various processing skills of SQL are :
Data Definition Language (DDL) : The SQL DDL provides commands for defining relation schemas (structure), deleting
relations, creating indexes and modifying relation schemas.
Data Manipulation Language (DML) : The SQL DML includes commands to insert, delete, and modify tuples in the
database.
Embedded Data Manipulation Language : The embedded form of SQL is used in high level programming languages.
View Definition : The SQL also includes commands for defining views of tables.
Authorization : The SQL includes commands for access rights to relations and views
of tables.
Integrity : The SQL provides forms for integrity checking
using condition.
Transaction control : The SQL includes commands for file transactions
and control over transaction
processing.
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