NOT NULL: NOT NULL constraint makes sure that a column does not hold NULL value. When we don’t provide value for a particular column while inserting a record into a table, it takes NULL value by default. By specifying NULL constraint, we can be sure that a particular column(s) cannot have NULL values.Example:CREATE TABLE STUDENT( ROLL_NO INT NOT NULL, STU_NAME VARCHAR (35) NOT NULL, STU_AGE INT NOT NULL, STU_ADDRESS VARCHAR (235), PRIMARY KEY (ROLL_NO) ); - Study24x7
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NOT NULL:
NOT NULL constraint makes sure that a column does not hold NULL value. When we don’t provide value for a particular column while inserting a record into a table, it takes NULL value by default. By specifying NULL constraint, we can be sure that a particular col...

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