Constraints in DBMS Constraints enforce limits to the data or type of data that can be inserted/updated/deleted from a table. The whole purpose of constraints is to maintain the data integrity during an update/delete/insert into a table. In this tutorial we will learn several types of constraints that can be created in RDBMS. Types of constraints NOT NULLUNIQUEDEFAULTCHECKKey Constraints – PRIMARY KEY, FOREIGN KEYDomain constraintsMapping constraints - Study24x7
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DBMS
56 followers study24x7 16 Mar 2019 03:12 PM study24x7 study24x7

Constraints in DBMS
Constraints enforce limits to the data or type of data that can be inserted/updated/deleted from a table. The whole purpose of constraints is to maintain the data integrity during an update/delete/insert into a table. In this tutorial we will learn sev...

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