Null attribute mismatch for column '%1'

Item Value
SQLCODE -724
Constant SQLE_OMNI_NULL_MISMATCH
SQLSTATE WO018
Sybase error code 11211
ODBC 2 State OK
ODBC 3 State OK
Parameter 1 The name of the column.

Probable cause 

The null attribute of the column specified in the 'CREATE EXISTING' statement differs from the null attribute of the actual column.