CONSTRAINTS

Constraints

CHECK Constraint in Oracle CHECK constraint defines a rule or condition which every row must… Read More

2 years ago

FOREIGN KEY Constraint in Oracle FOREIGN KEY is a referential integrity constraint.It establishes a relationship… Read More

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PRIMARY KEY Constraint in Oracle The PRIMARY KEY enforces the uniqueness in table.PRIMARY KEY can… Read More

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UNIQUE Constraint in Oracle An UNIQUE constraint specified that a column or a group of… Read More

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NOT NULL Constraint in Oracle Constraints in Oracle Constraints allows Oracle to set some rule… Read More

2 years ago