36.8. check_constraint_routine_usage
 The view check_constraint_routine_usage identifies routines (functions and procedures) that are used by a check constraint. Only those routines are shown that are owned by a currently enabled role. 
Table 36.6. check_constraint_routine_usage Columns
| Name | Data Type | Description | 
|---|---|---|
constraint_catalog | sql_identifier | Name of the database containing the constraint (always the current database) | 
constraint_schema | sql_identifier | Name of the schema containing the constraint | 
constraint_name | sql_identifier | Name of the constraint | 
specific_catalog | sql_identifier | Name of the database containing the function (always the current database) | 
specific_schema | sql_identifier | Name of the schema containing the function | 
specific_name | sql_identifier | The “specific name” of the function. See Section 36.40 for more information. |