Index for Section CONSTRAINTS

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SET
NAME
  SET CONSTRAINTS - set the constraint mode of the current transaction

SYNOPSIS
  SET CONSTRAINTS { ALL | constraint [, ...] } { DEFERRED | IMMEDIATE }

DESCRIPTION
  SET CONSTRAINTS sets the behavior of constraint evaluation in the current
  transaction. In IMMEDIATE mode, constraints are checked at the end of each
  statement. In DEFERRED mode, constraints are not checked until transaction
  commit.

  Upon creation, a constraint is always give one of three characteristics:
  INITIALLY DEFERRED, INITIALLY IMMEDIATE DEFERRABLE, or INITIALLY IMMEDIATE
  NOT DEFERRABLE. The third class is not affected by the SET CONSTRAINTS
  command.

  Currently, only foreign key constraints are affected by this setting. Check
  and unique constraints are always effectively initially immediate not
  deferrable.

COMPATIBILITY
  SQL92, SQL99

  SET CONSTRAINT is defined in SQL92 and SQL99.

Index for Section CONSTRAINTS

Alphabetical listing for S

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