需要帮助通过使用IF语句过滤PL/SQL中的用户输入

Question

我正在做一个PL/SQL脚本，它将从用户处获得输入，然后通过if语句发现是否必须将数据添加到1或2个表格。我正在使用IF语句和WHILE循环来完成此任务，但它不能正常工作。这个脚本也是main menu的一部分。任何输入都会被赞赏。

-- q3.sql 
-- Question name goes here!! 

VARIABLE g_options VARCHAR2(1000); 

PROMPT 'Vehicle Inventory Record' 
ACCEPT p_Options PROMPT 'Does this car has any Optional Equipment or Accessories?(YES or NO)'; 
-- Option table 
ACCEPT p_OCode PROMPT 'Enter the code for the option picked (Ex. CD2):' 
ACCEPT p_ODescription PROMPT 'Enter the description for the option picked:' 
ACCEPT p_OPrice PROMPT 'Enter the price for the option picked:' 
-- Car table 
ACCEPT p_SerialNo PROMPT 'What is the serial number of the car?' 
ACCEPT p_Make PROMPT 'What is the make of the car?' 
ACCEPT p_Model PROMPT 'What is the model of the car?' 
ACCEPT p_Year PROMPT 'What is the color of the car?' 
ACCEPT p_Trim PROMPT 'What is the trim of the car?' 
ACCEPT p_PurchFrom PROMPT 'Where was the car purchased from?' 
ACCEPT p_PurchInvNo PROMPT 'What was the invoice number of the purcahse?' 
ACCEPT p_PurchDate PROMPT 'When was the car purcahsed?(ex. 13-FEB-06)' 
ACCEPT p_PurchCost PROMPT 'How much did he car cost?' 
ACCEPT p_ListPrice PROMPT 'What was the list price of the car?' 


DECLARE 
    n_numb number := 1; 

BEGIN 
    --WHILE n_numb < 2 LOOP 

    IF '&p_Options' = 'YES' THEN 
    :g_options := 'Input will be added into the option table AND car table'; 
    -- Insert statement goes here 
    n_numb := 2; 

    ELSIF '&p_Options' = 'NO' THEN 
    :g_options := 'Input will only be added to the car table'; 
    -- Insert statement goes here 
    n_numb := 2; 

    ELSE 
    :g_options := ' The correct input for the first prompt was "YES" or "NO", you entered something else' 
    --:g_options := :g_options || ' The script will now end, please run it again' 
    n_numb := 0; 

    END IF; 
    --END LOOP; 
END; 
/

我评论的环出和n_numb变量，我得到这个错误：

END IF; 
    * 
ERROR at line 22: 
ORA-06550: line 22, column 7: 
PLS-00103: Encountered the symbol "END" when expecting one of the following: 
. (* @ % & = - + ; </> at in is mod remainder not rem 
<an exponent (**)> <> or != or ~= >= <= <> and or like 
between || multiset member SUBMULTISET_ 
The symbol ";" was substituted for "END" to continue. 

更新1：我加分号在语句的结束，后来我有一个错误说p_Options必须声明。我只是将p_Options更改为'& p_Options'，并且它表示脚本成功运行，但是我没有看到任何输出。如：'脚本现在将结束，请重新运行'。

这就是我看到的！

old 7:  IF '&p_Options' = 'YES' THEN 
new 7:  IF '' = 'YES' THEN 
old 12:  ELSIF '&p_Options' = 'NO' THEN 
new 12:  ELSIF '' = 'NO' THEN 

PL/SQL procedure successfully completed. 

更新2：我得到的if语句工作。但是如果我输入除YES或NO以外的其他东西作为输入，循环将不起作用。我基本没有回报，我可以继续按下进入永久。 ：S

------------在不同的音符----------

如何提取信息的用户的输入/并使用INSERT语句将其添加到表中？

Answer 1

Alittle修改了脚本，添加了一些调试功能。 这似乎是为正在工作：

SET VERIFY OFF 
SET FEED OFF 
SET SERVEROUTPUT ON 
SET SERVEROUTPUT ON 
VARIABLE g_options VARCHAR2(1000); 
PROMPT 'Vehicle Inventory Record' 
ACCEPT p_Options PROMPT 'Does this car has any Optional Equipment or Accessories?(YES or NO): '; 
/* 
-- Option table 
ACCEPT p_OCode PROMPT 'Enter the code for the option picked (Ex. CD2):' 
ACCEPT p_ODescription PROMPT 'Enter the description for the option picked:' 
ACCEPT p_OPrice PROMPT 'Enter the price for the option picked:' 
-- Car table 
ACCEPT p_SerialNo PROMPT 'What is the serial number of the car?' 
ACCEPT p_Make PROMPT 'What is the make of the car?' 
ACCEPT p_Model PROMPT 'What is the model of the car?' 
ACCEPT p_Year PROMPT 'What is the color of the car?' 
ACCEPT p_Trim PROMPT 'What is the trim of the car?' 
ACCEPT p_PurchFrom PROMPT 'Where was the car purchased from?' 
ACCEPT p_PurchInvNo PROMPT 'What was the invoice number of the purcahse?' 
ACCEPT p_PurchDate PROMPT 'When was the car purcahsed?(ex. 13-FEB-06)' 
ACCEPT p_PurchCost PROMPT 'How much did he car cost?' 
ACCEPT p_ListPrice PROMPT 'What was the list price of the car?' 
*/ 

DECLARE 
    n_numb number := 1; 

BEGIN 
    --WHILE n_numb < 2 LOOP 
    IF '&p_Options' = 'YES' THEN 
    :g_options := 'Input will be added into the option table AND car table'; 
    -- Insert statement goes here 
    dbms_output.put_line('insert with YES'); 
    n_numb := 2; 

    ELSIF '&p_Options' = 'NO' THEN 
    :g_options := 'Input will only be added to the car table'; 
    -- Insert statement goes here 
    dbms_output.put_line('insert with NO'); 
    n_numb := 2; 

    ELSE 
    :g_options := ' The correct input for the first prompt was "YES" or "NO", you entered something else'; 
    --:g_options := :g_options || ' The script will now end, please run it again' 
    dbms_output.put_line('ELSE'); 
    n_numb := 0; 

    END IF; 
    --END LOOP; 
END; 

如果您有更多的问题，更多的细节更新你的问题。