如何更新/编辑SQL代​​码以使其可行

Question

我是SQL的新手，我需要更新一段我需要用于工作的SQL代码，但我不知道如何将它变成一段可行的代码。我已经尝试在Oracle SQL Developer中编辑代码，但我所做的任何编辑根本不喜欢。

有人可以帮助我使下面的代码可行。该代码应该获取在数据库中具有相同名称的任何用户，以便我可以看到任何重复项，然后按字母顺序对它们进行排序。代码是很久以前写的，我在编辑它时遇到了麻烦，所以我可以在Oracle SQL Developer中使用。

SELECT surname, forename, login_id, site, position "
        + "FROM users "
        + "WHERE (surname, forename) IN "
        +    "( SELECT surname, forename "
        +      "FROM users "
        +      "GROUP BY surname, forename "
        +      "HAVING COUNT(*)>1 ) "
        + "ORDER BY 1 ASC, 2 ASC ";

我尝试了以下但无济于事。

SELECT surname,
  forename,
login_id,
site_id,
position
FROM users
WHERE surname
forename
FROM users
GROUP BY surname,
forename
HAVING COUNT (*)>1
ORDER BY 1 ASC,
2 ASC;

谢谢

Answer 1

试试这个（没有任何引号或+：

SELECT surname, forename, login_id, site, position 
FROM users 
WHERE (surname, forename) IN 
        ( SELECT surname, forename 
        FROM users 
        GROUP BY surname, forename 
        HAVING COUNT(*)>1 ) 
ORDER BY 1 ASC, 2 ASC;

Answer 2

SELECT surname, forename, login_id, site, position 
FROM users 
WHERE (surname||forename) IN 
        ( SELECT surname||forename 
        FROM users 
        GROUP BY surname, forename 
        HAVING COUNT(*)>1 ) 
ORDER BY 1,2;