Question

我试过IN，多个喜欢的句子等。

问题： 列出由Jove，Penguin，Plume和Scholastic出版的书籍。在出版商中按标题组织。

desc表

SQL＆GT; desc book

 Name
 ------------------
 BOOK_CODE
 TITLE
 PUBLISHER_CODE
 TYPE
 PRICE
 PAPERBACK

sql我试过

SQL> select * from BOOK where Publisher_Code IN(JP,PE,PL,SS)
  2  group by Publisher_code, title;

SQL> select * from BOOK
  2  where PUBLISHER_CODE IN('%JP%', '%PE%','%PL%', '%SC%')
  3  group by title, Publisher_code;


SQL> select * from book
  2  where Publisher_code like '%JP%'
  3  OR where Publisher_code like '%PE%'
  4  OR where Publisher_code like '%PL%'
  5  OR where Publisher_code like '%SC%'
  6  group by Publisher_code
  7  order by title;

Answer 1

目前还不清楚您使用group by的原因。你想要order by。您的示例查询具有非常基本的SQL错误，例如在查询中重复where关键字。这是一个似乎可以做你想要的版本：

select b.*
from book b
where b.Publisher_code like '%JP%' or
      b.Publisher_code like '%PE%' or
      b.Publisher_code like '%PL%' or
      b.Publisher_code like '%SC%'
order by b.Publisher_code, b.Title;

作为注释：大概是发布商代码是常量，您不需要将like与通配符一起使用。

多个喜欢的条款？ SQL

1 个答案: