Cannot modify column '%1' in table '%2'

Error constant SQLE_CANNOT_MODIFY
ODBC 2 State 42000
ODBC 3 State 42000
Parameter 1 Name of the column that cannot be changed.
Parameter 2 Name of the table containing the column.
Severity 14
SQLCODE –191
SQLSTATE 42W32
Sybase error code 230
Probable cause

You may have tried to modify a column that you do not have permission to modify. You may have tried to modify a column defined as an expression (such as column1+column2) in a view.