I try to create UNIQUE INDEX on sql server table but I get an error massge becuase of the null in my key.
I have 3000 records in my table and I want to add this Unique index to the row and ignore the the null.
here is my error massge:
ODBC error: [Microsoft][ODBC SQL Server Driver][SQL Server]CREATE UNIQUE INDEX terminated because a duplicate key was found for index ID 28. Most significant primary key is '<NULL>'.
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