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Pinto
Aged Yak Warrior
590 Posts |
 Posted - 2005-11-10 : 06:44:29
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| I have a table where the key is an autonumber. I also have a field which holds the reference of a room eg 0BM1. It is nvarchar. Is there a way I can set this field to duplicates = No, so that my user cannot enter the same room reference more than once. Or do I have to do this check in my asp.net code ?TIA |
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LarsG
Constraint Violating Yak Guru
284 Posts |
Posted - 2005-11-10 : 06:47:33
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Seems like you want a unique constraintalter table tableName add constraint constraintName unique(columnName) |
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Create unique field that isn't the key