Class UniqueConstraint {Analysis} derived from: TableConstraint
Documentation
Section 4.17.2
A unique constraint is satisfied if and only if no two rows in a table have the same non-null values in the unique columns.
Section 11.7
3) If <unique column list> UCL is specified, then
a) Each <column name> in the <unique column list> shall identify a column of T, and the same column
shall not be identified more than once.
b) The set of columns in the <unique column list> shall be distinct from the unique columns of any other unique constraint descriptor that is included in the base table descriptor of T.
Parent Package | Constraints | Abstract | No |
Export Control | PublicAccess | Link Class for | None |
Class Kind | NormalClass | Cardinality | n |
Space | | Concurrency | Sequential |
Persistence | No | | |
Attributes
Associations
Generalization Relationships
Property Settings
Data Modeler
dmItem | False | DMName | |
IsTable | False | IsView | False |
IsDomain | False | IsSPPackage | False |
Synonymns | | TableSpaceID | |
SourceId | | SourceType | |
CorrelationName | | SelectClause | |
IsUpdateable | True | CheckOption | None |
IsSnapShot | False | IsDistinct | False |
PersistToServer | | IsPackage | False |