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Difference in using Unique index and Unique Constraint in Sql Server?
I would like to know what the behavior/differences between a unique index and Unique Constraints for the Sql Server?
Many ... ke to know how it is in the other banks and understand what limitations or additional features we can provide for developers.
Difference in using Unique index and Unique Constraint in MySQL?
I would like to know what the behavior/differences between a unique index and Unique Constraints for the MySQL ?
Many sho ... oes it work?
Link, similar situation in another engine: difference in using Unique index and Unique Constraint in Informix?