CONSTRAINTS COLUMN USAGE
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CONSTRAINTS_COLUMN_USAGE identifies columns used by PRIMARY KEY and UNIQUE constraints. For FOREIGN KEY constraints, this view identifies the columns defining the constraint.
| Column name | Data type | Length | Description |
|---|---|---|---|
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|
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67 |
Table for which the constraint is defined; nullable |
|
|
|
67 |
Column used in the constraint definition; nullable |
|
|
|
67 |
Unique name for the constraint; nullable |