| Column | Type | Null | Default | Links to | Comments |
|---|---|---|---|---|---|
| CONSTRAINT_CATALOG | varchar(512) | No | |||
| CONSTRAINT_SCHEMA | varchar(64) | No | SCHEMATA -> SCHEMA_NAME | ||
| CONSTRAINT_NAME | varchar(64) | No | |||
| UNIQUE_CONSTRAINT_CATALOG | varchar(512) | No | |||
| UNIQUE_CONSTRAINT_SCHEMA | varchar(64) | No | SCHEMATA -> SCHEMA_NAME | ||
| UNIQUE_CONSTRAINT_NAME | varchar(64) | Yes | NULL | ||
| MATCH_OPTION | varchar(64) | No | |||
| UPDATE_RULE | varchar(64) | No | |||
| DELETE_RULE | varchar(64) | No | |||
| TABLE_NAME | varchar(64) | No | |||
| REFERENCED_TABLE_NAME | varchar(64) | No |