很抱歉,但是我不知道应该如何使用pl / SQL的if,end语句
这是我希望它能解释我想要做什么的代码
DECLARE
S1 NUMBER(2) := :ID;
S2 VARCHAR2(32) := :USERNAME;
S3 VARCHAR(32) := :PASSWORD;
X VARCHAR2(300);
BEGIN
INSERT INTO TEST1 (ID,USERNAME,PASSWORD)
VALUES (S1,S2,S3);
COMMIT;
IF((SELECT USERNAME FROM TEST1 WHERE USERNAME = S2) =S2 )
THEN
X:= SHOW_ALERT('ALERT12');
IF (X=ALERT_BUTTON1)
THEN EXIT_FORM;
END IF;
END IF;
END;
答案 0 :(得分:1)
您可以使用此:
DECLARE
S1 NUMBER(2) := :ID;
S2 VARCHAR2(32) := :USERNAME;
S3 VARCHAR(32) := :PASSWORD;
X VARCHAR2(300);
v_count number;
BEGIN
INSERT INTO TEST1 (ID,USERNAME,PASSWORD)
VALUES (S1,S2,S3);
COMMIT;
SELECT Count(*) into v_count FROM TEST1 WHERE USERNAME = S2;
IF(v_count = 1 )
THEN
X:= SHOW_ALERT('ALERT12');
IF (X=ALERT_BUTTON1)
THEN EXIT_FORM;
END IF;
END IF;
END;