MS SQL CURSOR - IF ELSE KULLANIMI

DECLARE @DOGUMTARIH SMALLDATETIME 
DECLARE @SICILKOD VARCHAR(30)
DECLARE X_CURSOR CURSOR FOR 
SELECT  SICILKOD FROM PERKRT ORDER BY SICILKOD 
OPEN X_CURSOR FETCH NEXT FROM X_CURSOR INTO @SICILKOD
 WHILE (@@FETCH_STATUS = 0)
BEGIN
	IF @DOGUMTARIH <'19730101'
		UPDATE PERKRT SET BKOD1 =1 WHERE SICILKOD=@SICILKOD
	ELSE
		UPDATE PERKRT SET BKOD1 =2 WHERE SICILKOD=@SICILKOD
FETCH NEXT FROM X_CURSOR INTO @SICILKOD 
END
CLOSE  X_CURSOR
DEALLOCATE X_CURSOR