| Overview | Module | Use | Devguide | Index |
| Constants | Constants' Details |
| constants group ColumnValue |
|
| Constants | |
| NO_NULLS | indicates that a column does not allow NULL values. |
| NULLABLE | indicates that a column does allow NULL values. |
| NULLABLE_UNKNOWN | indicates that the nullability of the column is unknown. |
| Constants' Details | |
NO_NULLS
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NULLABLE
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NULLABLE_UNKNOWN
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