Defaults cannot be created on columns with an IDENTITY attribute. Table ‘%.*ls’, column ‘%.*ls’.

Error Message:
Msg 1754, Level 16, State 0, Line 1
Defaults cannot be created on columns with an IDENTITY attribute. Table ‘%.*ls’, column ‘%.*ls’.

Severity level:
16.

Description:
This error message appears when you try to create a DEFAULT on a column with the IDENTITY property.

Consequences:
The T-SQL statement can be parsed, but causes the error at runtime.

Resolution:
Error of the Severity Level 16 are generated by the user and can be fixed by the SQL Server user. The statement cannot be executed this way. You cannot create a DEFAULT constraint for a column with the IDENTITY property.

Versions:
All versions of SQL Server.

Example(s):
CREATE TABLE #t
(
 i1 INT IDENTITY NOT NULL DEFAULT 0
)

Remarks:
IDENTITY values are automatically handled by SQL Server. The specification of a DEFAULT constraint for such a column in unnecessary and raises the error.




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