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
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