___________ defines rules regarding the values allowed in columns and is the standard mechanism for enforcing database integrity.(a) Column(b) Constraint(c) Index(d) TriggerI had been asked this question during an interview.My question is based upon DDL Command in chapter SQL Basics of Oracle

___________ defines rules regarding the values allowed in columns and

1.	___________ defines rules regarding the values allowed in columns and is the standard mechanism for enforcing database integrity.(a) Column(b) Constraint(c) Index(d) TriggerI had been asked this question during an interview.My question is based upon DDL Command in chapter SQL Basics of Oracle
Answer» The CORRECT answer is (B) Constraint Explanation: SQL constraints are USED to specify RULES for the data in a table.If there is any violation between the constraint and the data action, the action is aborted by the constraint.

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___________ defines rules regarding the values allowed in columns and is the standard mechanism for enforcing database integrity.(a) Column(b) Constraint(c) Index(d) TriggerI had been asked this question during an interview.My question is based upon DDL Command in chapter SQL Basics of Oracle

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