#include <stdio.h>
    DATABASE PERS = FILENAME "PERSONNEL";

    main()
    {
    READY PERS;
    START_TRANSACTION READ_WRITE;

    FOR SH IN SALARY_HISTORY
       WITH SH.EMPLOYEE_ID = "00164"
       AND SH.SALARY_END MISSING
          MODIFY SH USING
             SH.SALARY_AMOUNT = SH.SALARY_AMOUNT * 1.1;
          END_MODIFY;
    END_FOR;

    ROLLBACK;
    FINISH;
    }