ALL_CONSTRAINTS v16
The ALL_CONSTRAINTS view provides information about the constraints placed on tables accessible by the current user.
| Name | Type | Description |
|---|---|---|
owner | TEXT | User name of the constraint’s owner. |
schema_name | TEXT | Name of the schema in which the constraint belongs. |
constraint_name | TEXT | Name of the constraint. |
constraint_type | TEXT | The constraint type. Possible values are: C – check constraint; F – foreign key constraint; P – primary key constraint; U – unique key constraint; R – referential integrity constraint; V – constraint on a view; O – with read-only, on a view |
table_name | TEXT | Name of the table to which the constraint belongs. |
search_condition | TEXT | Search condition that applies to a check constraint. |
r_owner | TEXT | Owner of a table referenced by a referential constraint. |
r_constraint_name | TEXT | Name of the constraint definition for a referenced table. |
delete_rule | TEXT | Delete rule for a referential constraint. Possible values are: C – cascade; R – restrict; N – no action |
deferrable | BOOLEAN | Specified if the constraint is deferrable (T or F). |
deferred | BOOLEAN | Specified if the constraint was deferred (T or F). |
index_owner | TEXT | User name of the index owner. |
index_name | TEXT | Name of the index. |
constraint_def | TEXT | Definition of the constraint. |