Database – What is TCL?

TCL (Transaction Control Language)
SQL (Structured Query Language)

TCL (Transaction Control Language) statements are used to manage the changes made by DML statements. It allows statements to be grouped together into logical transactions. The main TCL commands are:


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Database – What is DDL?

SQL (Structured Query Language), Database, What is DDL?
SQL (Structured Query Language)

What is DDL (Data Definition Language)?

DDL (Data Definition Language), are the statements used to manage tables, schemas, domains, indexes, views, and privileges.  The the major actions performed by DDL commands are: create, alter, drop, grant, and revoke.

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What is DCL?

What is DCL (Data Control Language)?

Data control language (DCL) is anything that is used for administrating access (permissions/security) to database content.  The main DCL commands are:

  • Grant
  • Revoke

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