Question

我有一个查询要在其中排除特定值（在此示例中为“Mat”）

查询工作正常，没有子查询：

SELECT test.SAME , test.Nationality, test.Name, coalesce(test2.Job,'')jobb
  FROM test
  LEFT JOIN test2
  ON test.noID=test2.noID
  WHERE test.SAME = 555 and test.Name NOT IN (
                                              SELECT *
                                              FROM test
                                              WHERE test.NAME = "Mat"
                                              )
  group by SAME , name
  order by same desc

此处示例：

http://www.sqlfiddle.com/#!2/1f1fb/28

Answer 1

如果您想将确切的名称与 Mat ：

匹配，则可以执行此操作

SELECT test.SAME , test.Nationality, test.Name, coalesce(test2.Job,'')jobb
  FROM test
  LEFT JOIN test2
  ON test.noID=test2.noID
  WHERE test.SAME = 555 and test.Name != "Mat"

group by SAME , name
  order by same desc

如果你想要排除所有包含 Mat 的内容，那么：

SELECT test.SAME , test.Nationality, test.Name, coalesce(test2.Job,'')jobb
      FROM test
      LEFT JOIN test2
      ON test.noID=test2.noID
      WHERE test.SAME = 555 and test.Name NOT LIKE '%Mat%'

    group by SAME , name
      order by same desc

如果您想要排除以 Mat 开头，那么：

SELECT test.SAME , test.Nationality, test.Name, coalesce(test2.Job,'')jobb
          FROM test
          LEFT JOIN test2
          ON test.noID=test2.noID
          WHERE test.SAME = 555 and test.Name NOT LIKE 'Mat%'

        group by SAME , name
          order by same desc

Answer 2

您可以使用NOT LIKE statement：

SELECT test.SAME , test.Nationality, test.Name, coalesce(test2.Job,'')jobb
  FROM test
  LEFT JOIN test2
  ON test.noID=test2.noID
  WHERE test.SAME = 555 and test.Name not like 'Mat'
  group by SAME , name
  order by same desc

SQLFiddle

或<>或!= operator：

SELECT test.SAME , test.Nationality, test.Name, coalesce(test2.Job,'')jobb
  FROM test
  LEFT JOIN test2
  ON test.noID=test2.noID
  WHERE test.SAME = 555 and test.Name <> 'Mat'
  group by SAME , name
  order by same desc

SQLFiddle

Answer 3

您的查询应该是： -

SELECT test.SAME , test.Nationality, test.Name, coalesce(test2.Job,'')jobb
  FROM test
  LEFT JOIN test2
  ON test.noID=test2.noID
  WHERE test.SAME = 555 and test.Name NOT IN (
                                          SELECT NAME
                                          FROM test
                                          WHERE test.NAME = "Mat"
                                          )
  group by SAME , name
  order by same desc

Answer 4

子查询将无效，因为您在子查询中给出了select *，但在外部查询中，您只有一列要匹配，即test.Name。如果您将子查询放入（SELECT test.Name FROM test WHERE test.NAME =＆＃34; Mat＆＃34;）那么整个查询就可以了。但顺便说一句，这里不需要子查询来获得你想要的结果。

SQL查询排除值

4 个答案: