Question

我正在尝试在PL / SQL中运行此脚本。但我经常遇到错误，我尝试用双引号替换单引号但没有用。

ACCEPT p_name PROMPT "Enter Customer Name: "
VARIABLE g_output VARCHAR2(200)
DECLARE
   v_street VARCHAR2(30);
   v_city VARCHAR2(20);
   v_prov VARCHAR2(20);
   v_postal VARCHAR2(10);
BEGIN
   SELECT cstreet, ccity, cprov, cpostal
     INTO v_address,v_city,v_state,v_zip
     FROM customer
    WHERE cname = "&p_name";
   :g_output := "&p_name" || " " ||v_street || " " || v_city;
   :g_output := :g_output " " || v_prov || " " || v_postal;
END;
/
PRINT g_output

错误：

Enter Customer Name: Ankur Kaushal
old  10:     WHERE cname = "&p_name";
new  10:     WHERE cname = "Ankur Kaushal";
old  11:    :g_output := "&p_name" || " " ||v_street || " " || v_city;
new  11:    :g_output := "Ankur Kaushal" || " " ||v_street || " " || v_city;
   :g_output := :g_output " " || v_prov || " " || v_postal;
                          *
ERROR at line 12:
ORA-06550: line 12, column 27:
PLS-00103: Encountered the symbol " " when expecting one of the following:
. ( * @ % & = - + ; < / > at in is mod remainder not rem
<an exponent (**)> <> or != or ~= >= <= <> and or like
between || indicator multiset member SUBMULTISET_
The symbol "." was substituted for " " to continue.


Input truncated to 14 characters

G_OUTPUT
--------------------------------------------------------------------------------

我在这里犯的任何错误？

Answer 1

倒数第二行不应该是

  :g_output := :g_output || ' ' || v_prov || ' ' || v_postal;

Answer 2

Oracle SQL和PL / SQL使用单引号'来分隔字符串。双引号"用于表示标识符（表名，列名......）。

用单引号替换所有双引号。

另请注意，SQL * Plus是一个很差的工具，可用作用户界面。除了让用户手动输入两个单引号（“O''Reilly”）之外，没有办法让你的实际代码使用包含引号的名称（“O'Reilly”）。

Answer 3

 SELECT cstreet, ccity, cprov, cpostal
 INTO v_address, v_city, v_prov, v_zip

没有声明v_state。

PL / SQL中的ORA-06550错误

3 个答案: