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Background documentationConstraint Name (constraint_name)

 

A constraint name (constraint_name) defines an integrity condition that must be satisfied by the rows in a table.

Structure

Syntax Syntax

  1. <constraint_name> ::
  <identifier>
End of the code.
Examples

SQL Tutorial, Constraints

Explanation

An error message is output if the name consists of more than 32 characters.

More Information

Ensuring Data Integrity

CONSTRAINT Definition

ALTER definition

CREATE DOMAIN Definition

DROP Definition