constraint_table_usage
The view constraint_table_usage identifies all
tables in the current database that are used by some constraint and
are owned by a currently enabled role. (This is different from the
view table_constraints, which identifies all
table constraints along with the table they are defined on.) For a
foreign key constraint, this view identifies the table that the
foreign key references. For a unique or primary key constraint,
this view simply identifies the table the constraint belongs to.
Check constraints and not-null constraints are not included in this
view.
Table 36.17. constraint_table_usage Columns
Column Type Description |
|---|
Name of the database that contains the table that is used by some constraint (always the current database) |
Name of the schema that contains the table that is used by some constraint |
Name of the table that is used by some constraint |
Name of the database that contains the constraint (always the current database) |
Name of the schema that contains the constraint |
Name of the constraint |