Oracle 更新列
我创建了一个具有以下属性的表:Oracle 更新列,oracle,oracle10g,Oracle,Oracle10g,我创建了一个具有以下属性的表: TABLE "VENDORACCOUNT" ( "VEN_ACCOUNTID" "VEN_REGNO" "VEN_TXDATE" "VEN_INVOICE_REFNO" "TOTALAMOUNT" "PAID_TOVEN" "BALANCE" ) 我根据另一个表的发票参考号值,通过弹出的LOV从另一个表中获取总金额列值。这里的场景是从PAID\u TOVEN列值中减去TOTALAMOUNT列值。但下次
TABLE "VENDORACCOUNT"
( "VEN_ACCOUNTID"
"VEN_REGNO"
"VEN_TXDATE"
"VEN_INVOICE_REFNO"
"TOTALAMOUNT"
"PAID_TOVEN"
"BALANCE"
)
我根据另一个表的发票参考号
值,通过弹出的LOV从另一个表中获取总金额
列值。这里的场景是从PAID\u TOVEN
列值中减去TOTALAMOUNT
列值。但下次我选择TOTALAMOUNT
值时,它不会显示更新后的值。它向我显示了旧值,如下面的报告所示
查询报告:
select "VEN_ACCOUNTID",
"VEN_REGNO" ,
"VEN_TXDATE" ,
"VEN_INVOICE_REFNO" as ,
"TOTALAMOUNT" as ,
"PAID_TOVEN" as ,
TOTALAMOUNT-PAID_TOVEN as "Balance"
from "VENDORACCOUNT"
在上面的报告中,我希望每当我进行第二次输入时,它应该分别显示减去的或更新的值,即1800
而不是2800
和4550
而不是9550
。所以下次我可以从1800
和4550
中减去金额
我创造了这个触发器
create or replace trigger "VENDORACCOUNT_T2"
BEFORE
insert or update or delete on "VENDORACCOUNT"
for each row
begin
DECLARE new_balance INT;
DECLARE new_total INT;
DECLARE new_paid INT;
SELECT balance INTO old_balance,
total INTO old_total,
PAID_TOVEN INTO new_paid
FROM vendoraccount
WHERE ven_regno = new.ven_regno
AND VEN_INVOICE_REFNO = new.VEN_INVOICE_REFNO;
UPDATE vendoraccount SET TOTALAMOUNT = old_total + old_balance - new_paid,
balance = TOTALAMOUNT - new_paid
WHERE VEN_REGNO= new.VEN_REGNO
AND VEN_INVOICE_REFNO = new.VEN_INVOICE_REFNO;
end;
我得到了这个错误:
错误:PLS-00103:'在需要时遇到符号“DECLARE”
以下选项之一:开始函数pragma过程子类型类型类型current curs'
我想你不需要扳机。您可以根据下面的查询创建一个视图,然后根据
视图
为您的LOV创建记录组。这个查询看起来像-
select accid,regno,inv_refno,LAG(bal,1,totalamount) OVER (PARTITION BY regno ORDER BY accid) "TOTALAMOUNT", paid_toven, bal
from (with temp_data as
(select 2 accid,3 regno, 16 inv_refno, 2800 totalamount, 1000 paid_toven from dual
union
select 3 accid,3 regno, 16 inv_refno, 2800 totalamount, 2000 paid_toven from dual
union
select 4 accid,8 regno, 22 inv_refno, 9550 totalamount, 5000 paid_toven from dual
union
select 5 accid,8 regno, 22 inv_refno, 9550 totalamount, 5000 paid_toven from dual
union
select 6 accid,8 regno, 22 inv_refno, 9550 totalamount, 8000 paid_toven from dual)
select accid,regno,inv_refno,totalamount,paid_toven,totalamount-paid_toven bal
from temp_data);
输出为-
ACCID REGNO INV_REFNO TOTALAMOUNT PAID_TOVEN BAL
----- ----- --------- ----------- ---------- ---
2 3 16 2800 1000 1800
3 3 16 1800 2000 800
4 8 22 9550 5000 4550
5 8 22 4550 5000 4550
6 8 22 4550 8000 1550
因此,根据您的表,查询将是-
select accid,regno,inv_refno,LAG(bal,1,totalamount) OVER (PARTITION BY regno ORDER BY accid) "TOTALAMOUNT", paid_toven, bal
from (select accid,regno,inv_refno,totalamount,paid_toven,totalamount-paid_toven bal
from VENDORACCOUNT);
查询基本上满足了您的要求,但是您的示例数据看起来不正确。这实际上是一个运行总数的示例。在上面的查询中,您是自己输入数据的吗?我将在表单中输入数据或让我知道。我还有触发器,你能为我修改它吗。因此我猜你没有阅读我提到的部分
,因此根据你的表,查询将是…
我阅读了它。。我理解这个问题,但我不理解第二部分的细节。我应该使用它还是为了理解?顺便说一下,你的输出是错误的。看看你的输出。如果你从1800减去2000,i-e 1800-2000=-200,你的结果是800Buddy,我给你一个如何着手解决这个问题的想法。你不希望我做你的家庭作业或完成你的项目,对吗?因为如果你是,那么你在错误的地方。