Question

CREATE OR REPLACE TRIGGER btinsert
BEFORE INSERT ON sample
  BEGIN
    IF (TO_CHAR(SYSDATE,'HH24:MI')
          NOT BETWEEN ('08:00' AND '22:00') THEN 
    RAISE_APPLICATION_ERROR(-20500, 'you may insert'
       ||' into EMPLOYEES table only during '
       ||' normal business hours.'); 
   END IF;
END;

but I’m getting an error:

ERROR at line 8: PLS-00103: Encountered the symbol “END”
6. RAISE_APPLICATION_ERROR(-20500, ‘you may insert’
7. ||’ into EMPLOYEES table only during ‘
8. ||’ normal business hours.’);
9. END IF;
10. END;

Answer 1

you have some missing brackets and excess ones too.

CREATE OR REPLACE TRIGGER btinsert
BEFORE INSERT ON sample
  BEGIN
    IF (TO_CHAR(SYSDATE,'HH24:MI') NOT BETWEEN '08:00' AND '22:00') THEN 
    RAISE_APPLICATION_ERROR(-20500, 'you may insert'
       ||' into EMPLOYEES table only during '
       ||' normal business hours.'); 
   END IF;
END;
/