When you insert new records into an SQL database, you may run into issues where you accidentally overwrite records that are already present due to a duplication issue. You can use a simple alteration ...
That suggests that the field value is already null. IsNull () would return false for an empty string.<BR><BR>SQL Server provides the NullIf () function, which does what you want; depending on your ...
Arthur Fuller explores the value of identity columns and the usefulness of their arbitrary values and discusses ways to use SQL Server 2000’s IDENTITY_INSERT setting. Despite your numerous ...
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