Ich muss Select-Anweisung in Post_insert-Trigger erstellen. Ist es möglich, wenn ja wie? Ich möchte eine andere Tabelle Datensätze überprüfen, wenn es existiert, dann wird es aktualisieren, andernfalls als neuen Datensatz einfügen. Bitte helfen Sie.Formulare 6i, wenn Datensatz existiert, dann Update
Mein Block-Code ist, dass ich
DECLARE
EXSIST_TYPE varchar2(50);
EXSIST_NAME varchar2(50);
EXSIST_COMPANY VARCHAR2(100);
BEGIN
SELECT PRO_TYPE, PRO_NAME, COMPANY_NAME INTO EXSIST_TYPE, EXSIST_NAME ,EXSIST_COMPANY FROM STOCK;
IF
:PURCHASE_DETAIL.PRO_TYPE <> EXSIST_TYPE AND
:PURCHASE_DETAIL.PRO_NAME <> EXSIST_NAME AND
:PURCHASE_DETAIL.COMPANY_NAME <> EXSIST_COMPANY THEN*/
IF
:PURCHASE.RADIO_TYPE = 'PURCHASE' THEN
INSERT INTO STOCK(
PRO_TYPE ,
PRO_NAME ,
COMPANY_NAME ,
QUANTITY ,
PURCHASE_RATE,
SALE_RATE ,
RACK_NUM
)
VALUES
(
:PURCHASE_DETAIL.PRO_TYPE,
:PURCHASE_DETAIL.PRO_NAME,
:PURCHASE_DETAIL.COMPANY_NAME,
:PURCHASE_DETAIL.QUANTITY,
:PURCHASE_DETAIL.PRICE,
:PURCHASE_DETAIL.SALE_PRICE,
:PURCHASE_DETAIL.RACK_NUM
);
END IF;
ELSIF
:PURCHASE_DETAIL.PRO_TYPE = EXSIST_TYPE AND
:PURCHASE_DETAIL.PRO_NAME = EXSIST_NAME AND
:PURCHASE_DETAIL.COMPANY_NAME = EXSIST_NAME THEN
IF
:PURCHASE.RADIO_TYPE = 'PURCHASE' THEN
UPDATE STOCK SET
STOCK.QUANTITY = STOCK.QUANTITY+:PURCHASE_DETAIL.QUANTITY
WHERE
STOCK.PRO_TYPE = :PURCHASE_DETAIL.PRO_TYPE AND
STOCK.PRO_NAME = :PURCHASE_DETAIL.PRO_NAME AND
STOCK.COMPANY_NAME= :PURCHASE_DETAIL.COMPANY_NAME;
ELSIF
:PURCHASE.RADIO_TYPE = 'PRCH_RETURN' THEN
UPDATE STOCK SET
STOCK.QUANTITY = STOCK.QUANTITY-:PURCHASE_DETAIL.QUANTITY
WHERE
STOCK.PRO_TYPE = :PURCHASE_DETAIL.PRO_TYPE AND
STOCK.PRO_NAME = :PURCHASE_DETAIL.PRO_NAME AND
STOCK.COMPANY_NAME = :PURCHASE_DETAIL.COMPANY_NAME;
END IF;
END IF;
END;
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