Those constraints are used to specify the limit on the data type of the table. That can be specified while creating or altering the table statement. The sample of constraints are:
NOT NULL
CHECK
DEFAULT
UNIQUE
PRIMARY KEY
FOREIGN KEY
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What are Constraints in SQL?
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Anonymous User
16-Sep-2019Those constraints are used to specify the limit on the data type of the table. That can be specified while creating or altering the table statement. The sample of constraints are: