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CONSTRAINT_COLUMN_USAGE

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The CONSTRAINT_COLUMN_USAGE system view lists the table columns on which constraints (referential constraints, unique constraints, check constraints and assertions) that are owned by the current ident are defined.

Column name	Data type	Description
TABLE_CATALOG	VARCHAR(128)	The name of the catalog containing the table.
TABLE_SCHEMA	VARCHAR(128)	The name of the schema containing the table.
TABLE_NAME	VARCHAR(128)	The name of the table.
COLUMN_NAME	VARCHAR(128)	The name of the table column.
CONSTRAINT_CATALOG	VARCHAR(128)	The name of the catalog containing the constraint.
CONSTRAINT_NAME	VARCHAR(128)	The name of the constraint.

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