我有一个存储过程,提示用户输入并存储/更新我的表。我的问题是,在输入数字时尝试添加限制时,它无法按计划运行。
以下是表格:
Drop table incident;
CREATE TABLE INCIDENT
(ICD_ID VARCHAR2 (8) NOT NULL PRIMARY KEY,
PLR_ID VARCHAR2 (11),
M_ID VARCHAR2 (10),
PP_ID VARCHAR2 (10),
I_POINTS NUMBER (8));
INSERT INTO INCIDENT VALUES
('ICD01', 'CHE01', 'M01', 'PP01', NULL);
INSERT INTO INCIDENT VALUES
('ICD02', 'CHE03', 'M07', 'PP02', NULL);
INSERT INTO INCIDENT VALUES
('ICD03', 'CHE03', 'M04', 'PP03', NULL);
INSERT INTO INCIDENT VALUES
('ICD04', 'KLN04', 'M07', 'PP02', NULL);
INSERT INTO INCIDENT VALUES
('ICD05', 'CHE01', 'M04', 'PP03', NULL);
出现提示时,我输入ICD_ID (例如'ICD03') * 必须是大写 *条目。
程序:
DECLARE
v_icd_id incident.icd_id%type := &INCIDENT_ID;
v_inc_I_POINTS incident.i_points%type := &PENALTY_POINTS;
v_I_POINTS incident.I_POINTS%type;
V_PP_ID INCIDENT.PP_ID%TYPE;
E_TOO_MANY_POINTS exception;
E_UPDATE_HIGH exception;
E_A exception;
E_B exception;
E_C exception;
BEGIN
SELECT I_POINTS INTO v_I_POINTS
FROM incident WHERE icd_id = v_icd_id;
IF v_I_POINTS > 10 THEN
RAISE E_UPDATE_HIGH;
END IF;
IF v_inc_I_POINTS >10 THEN
RAISE E_TOO_MANY_POINTS;
END IF;
IF V_PP_ID = 'PP03' OR V_INC_I_POINTS > 10 OR V_INC_I_POINTS < 10 THEN
RAISE E_A;
END IF;
UPDATE incident SET i_points = (v_inc_i_points + NVL(i_points,0))
WHERE icd_id=v_icd_id;
DBMS_OUTPUT.PUT_LINE('');
DBMS_OUTPUT.PUT_LINE('=====================');
DBMS_OUTPUT.PUT_LINE('PENALTY POINTS UPDATED!');
DBMS_OUTPUT.PUT_LINE('=====================');
DBMS_OUTPUT.PUT_LINE('');
EXCEPTION
WHEN E_TOO_MANY_POINTS THEN
DBMS_OUTPUT.PUT_LINE('==========================================================');
DBMS_OUTPUT.PUT_LINE('TOO MANY POINTS ALLOCATED THERE! ACTION ABORTED.');
DBMS_OUTPUT.PUT_LINE('==========================================================');
WHEN E_UPDATE_HIGH THEN
DBMS_OUTPUT.PUT_LINE('=============================================================');
DBMS_OUTPUT.PUT_LINE('CAN NOT STORE THAT MANY PENALTY POINTS THERE! ACTION ABORTED.');
DBMS_OUTPUT.PUT_LINE('=============================================================');
WHEN E_A THEN
DBMS_OUTPUT.PUT_LINE('=============================================================');
DBMS_OUTPUT.PUT_LINE('CAN ONLY ALLOCATED 10 POINTS HERE! ACTION ABORTED.');
DBMS_OUTPUT.PUT_LINE('=============================================================');
WHEN E_B THEN
DBMS_OUTPUT.PUT_LINE('=============================================================');
DBMS_OUTPUT.PUT_LINE('CAN ONLY ALLOCATED 5 POINTS HERE! ACTION ABORTED.');
DBMS_OUTPUT.PUT_LINE('=============================================================');
WHEN E_C THEN
DBMS_OUTPUT.PUT_LINE('=============================================================');
DBMS_OUTPUT.PUT_LINE('CAN ONLY ALLOCATED 1 POINTS HERE! ACTION ABORTED.');
DBMS_OUTPUT.PUT_LINE('=============================================================');
END;
/
我想要完成的任务:
是为了防止人们在PP_ID为“PP03”的情况下输入超过10且小于10的值。
为此,我申请了
IF V_PP_ID = 'PP03' OR V_INC_I_POINTS > 10 OR V_INC_I_POINTS < 10 THEN
RAISE E_A;
END IF;
这很好,但是当我添加另一个限制时:
防止人们输入的值大于5且小于5,其中PP_ID为“PP02”。
IF V_PP_ID = 'PP02' OR V_INC_I_POINTS > 5 OR V_INC_I_POINTS < 5 THEN
RAISE E_B;
END IF;
或
防止人们输入大于1且小于1的值,其中PP_ID为“PP01”。
IF V_PP_ID = 'PP01' OR V_INC_I_POINTS > 1 OR V_INC_I_POINTS < 1 THEN
RAISE E_C;
END IF;
它不起作用,只跟随第一个。我怎么能克服这个? 提前致谢。非常感谢帮助。
答案 0 :(得分:1)
我认为你的情况不正确:
每当 V_PP_ID 等于'PP03'时(无论V_INC_I_POINTS的值如何),只要 V_INC_I_POINTS 不等于10(无论如何), IF V_PP_ID = 'PP03' OR V_INC_I_POINTS > 10 OR V_INC_I_POINTS < 10 THEN
将评估为真V_PP_ID的值)。
我相信预期的条件是:
IF V_PP_ID = 'PP03' AND (V_INC_I_POINTS > 10 OR V_INC_I_POINTS < 10) THEN
或简单地说:
IF V_PP_ID = 'PP03' AND V_INC_I_POINTS != 10 THEN
(关于'PP02'和'PP01'的其他条件应相应修改。)
编辑:
我第一次错过了,但似乎“V_PP_ID”从未设置为任何值。我们需要将其实例化为所选行的 PP_ID 列的值。
尝试更换:
SELECT I_POINTS INTO v_I_POINTS
FROM incident WHERE icd_id = v_icd_id;
与
SELECT I_POINTS, PP_ID INTO v_I_POINTS, V_PP_ID
FROM incident WHERE icd_id = v_icd_id;