我对存储过程和使用游标为多行运行 SELECT 有点困惑。我需要在 SQL 查询中使用 LIKE 子句。我已经测试过这实际上与我的存储过程一起使用：
SQL> /* THIS WORKS*/
SQL> create or replace procedure search_testimonials(
2 curRETURN OUT sys_refcursor
3 )
4 IS
5 begin
6 OPEN curRETURN FOR
7 SELECT testimonial
8 FROM testimonial
9 WHERE testimonial like '%like%';
10 END search_testimonials;
11 /
Procedure created.
SQL> variable buffer refcursor;
SQL> execute Search_Testimonials(:buffer);
PL/SQL procedure successfully completed.
SQL> print buffer;
TESTIMONIAL
--------------------------------------------------------------------------------
I like the way OAG does business. I will be a repeat customer
I like the Cashier named David. I think he is a hottie! Go AOGS
当我尝试将参数用作搜索词的一部分时，就会出现问题：
SQL> /* THIS DOES NOT WORK*/
SQL> create or replace procedure search_testimonials(
2 search_term IN varchar2,
3 curRETURN OUT sys_refcursor
4 )
5 IS
6 begin
7 OPEN curRETURN FOR
8 SELECT testimonial
9 FROM testimonial
10 WHERE testimonial like search_term||'%%';
11 END search_testimonials;
12 /
Procedure created.
SQL>
SQL> execute Search_Testimonials('like', :buffer);
PL/SQL procedure successfully completed.
SQL> print buffer;
no rows selected
我不知道为什么这不起作用。我还尝试使用@VARIABLE 表示法来传递正确的术语。我正在使用 SQLPlus 运行代码。感谢您的任何建议。