More columns are being dropped from table '%1' than are defined

Error constant SQLE_TOO_MANY_COLUMNS_DELETED
ODBC 2 State 37000
ODBC 3 State 42000
Parameter 1 Name of the table from which the columns could not be dropped.
Severity 16
SQLCODE –124
SQLSTATE 42W44
Sybase error code 207
Probable cause

The number of columns in a table can never fall below one. Your ALTER TABLE has more drop/delete column clauses than the current number of columns in the table.