PL/SQL存儲過程

Question

我想使用存儲過程基於id從表中刪除記錄。 Id值必須作爲參數傳遞。但在嘗試此代碼時，表中的數據不會被刪除。誰能幫我打通這個

create or replace procedure PROC_INV_DELETE(num in number) 
is 
begin 

    delete from table_name 
    where id = '&num'; 
    commit; 

end; 
/

Answer 1

這將做你的工作：

create or replace procedure PROC_INV_DELETE(num in number) 
is 
begin 

    delete from table_name 
    where id = num; ---No need to use & and '' here 
    commit; 

end; 
/

呼叫：

declare 

a number:= '&num' ; 

Begin 

    PROC_INV_DELETE(a); 

end; 
/
Enter value for num: 4 
old 3: a number:= '&num' ; 
new 3: a number:= '4' ; 

PL/SQL procedure successfully completed.