define DCL, TCL,DQL
Answers
It is used to create and revoke roles & permissions
TCL- Transaction Control Language commands are used to manage transactions in the database. These are used to manage the changes made by DML-statements. It also allows statements to be grouped together into logical transactions.
DQL- DQL is abbreviation of Data Query Language. Used to retrieve the records / data from database
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Dcl-A data control language (DCL) is a syntax similar to a computer programming language used to control access to data stored in a database (Authorization). ... Examples of DCL commands include: GRANT to allow specified users to perform specified tasks. REVOKE it is remove the user accessibility to database object.
Tcl-Tcl is a high-level, general-purpose, interpreted, dynamic programming language. It was designed with the goal of being very simple but powerful. Tcl casts everything into the mold of a command, even programming constructs like variable assignment and procedure definition.
Documentum Query Language (DQL) is a language to query Documentum content management system. This, we use to create, manage, deliver, and archive all type of contents from text documents and spreadsheets to digital images, HTML, and XML components. You can execute DQL queries in two ways.
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