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25.3 The INFORMATION_SCHEMA CHECK_CONSTRAINTS Table

Contents

The CHECK_CONSTRAINTS table (available as of MySQL 8.0.16) provides information about CHECK constraints defined on tables.

The CHECK_CONSTRAINTS table has these columns:

  • CONSTRAINT_CATALOG

    The name of the catalog to which the constraint belongs. This value is always def.

  • CONSTRAINT_SCHEMA

    The name of the schema (database) to which the constraint belongs.

  • CONSTRAINT_NAME

    The name of the constraint.

  • CHECK_CLAUSE

    The expression that specifies the constraint condition.


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