index：1缺少IN或OUT參數Oracle

Question

當運行這個小腳本時，我收到錯誤「在index :: 1處缺少IN或OUT參數」不確定我在哪裏犯錯/ s？

{ 
DECLARE 
    LV_CODE_TXT VARCHAR (5) := 'A'; 
    LV_ORDERTOTAL_NUM NUMBER(6,2) := 100; 
    LV_DISCOUNT_NUM NUMBER(5,2); 
BEGIN 
    IF LV_CODE_TXT IN ('A','E') 
    THEN 
    LV_DISCOUNT_NUM =: LV_ORDERTOTAL_NUM * .05; 
    DBMS_OUPTUT.PUT_LINE (LV_DISCOUNT_NUM); 
    ELSIF LV_CODE_TXT IN ('B','C') 
    THEN 
    LV_DISCOUNT_NUM := LV_ORDERTOTAL_NUM * .10; 
    DBMS_OUTPUT.PUT_LINE (LV_DISCOUNT_NUM) 
    ELSIF LV_CODE_TXT = 'D' 
    THEN 
    LV_DISCOUNT_NUM := LV_ORDERTOTAL_NUM * .15; 
    DBMS_OUTPUT.PUT_LINE (LV_DISOCUNT_NUM); 
    ELSE 
    LV_DISOUNT_NUM := 0; 
    DBMS_OUTPUT.PUT_LINE(LV_DISOUNT_NUM); 
    END IF; 
END; 
} 

Answer 1

你有幾個拼寫錯誤，語法錯誤，最重要的是你並不需要打開和關閉大括號（{}），所以嘗試以下

DECLARE 
    LV_CODE_TXT   VARCHAR (5) := 'A'; 
    LV_ORDERTOTAL_NUM NUMBER (6, 2) := 100; 
    LV_DISCOUNT_NUM  NUMBER (5, 2); 
BEGIN 
    IF LV_CODE_TXT IN ('A', 'E') 
    THEN 
     LV_DISCOUNT_NUM := LV_ORDERTOTAL_NUM * .05; 
     DBMS_OUTPUT.PUT_LINE(LV_DISCOUNT_NUM); 
    ELSIF LV_CODE_TXT IN ('B', 'C') 
    THEN 
     LV_DISCOUNT_NUM := LV_ORDERTOTAL_NUM * .10; 
     DBMS_OUTPUT.PUT_LINE (LV_DISCOUNT_NUM); 
    ELSIF LV_CODE_TXT = 'D' 
    THEN 
     LV_DISCOUNT_NUM := LV_ORDERTOTAL_NUM * .15; 
     DBMS_OUTPUT.PUT_LINE (LV_DISCOUNT_NUM); 
    ELSE 
     LV_DISCOUNT_NUM := 0; 
     DBMS_OUTPUT.PUT_LINE (LV_DISCOUNT_NUM); 
    END IF; 
END;