查找特定列不存在的表 sql 服务器

Question

如何查找 table 中不存在特定列的内容。例如，列 ID 不存在于 table Contact 中，那么 Contact table 将出现在结果集中。

我试过了：

SELECT DISTINCT t.name
FROM sys.tables t
INNER join sys.columns C ON c.object_id = t.object_id
WHERE c.name <> 'ID'

但上面的查询 return all table 其中存在列 ID。

Answer 1

你能试试这个查询吗，

SELECT * FROM sys.tables WHERE type = 'U' AND object_id NOT IN (
SELECT DISTINCT c.object_id FROM sys.columns c WHERE c.name = 'ID')

Answer 2

SELECT  name
FROM    sys.Tables
WHERE   Object_ID NOT IN (SELECT Object_ID FROM sys.Columns WHERE name = 'ID')

Answer 3

您不需要执行连接，您只需添加一个子查询来标识具有 ID 列的 table 并使用 NOT IN(..the subquery..) 排除 object_id :

SELECT DISTINCT t.name
FROM sys.tables t
WHERE t.object_id NOT IN (SELECT object_id FROM sys.columns WHERE name = 'id')

您的查询不起作用的原因是因为您只是获取所有不等于 ID 的列，并且每个 table 都有许多符合该条件的列，因此它们将被返回即使有 ID 列。

Answer 4

一种方法是 NOT EXISTS:

SELECT  OBJECT_SCHEMA_NAME(t.object_id) AS SchemaName
      , t.name AS TableName
FROM    sys.tables t
WHERE   NOT EXISTS ( SELECT *
                     FROM   sys.columns c
                     WHERE  c.object_id = t.object_id
                            AND c.name = 'ID' );

Answer 5

尝试以下操作，列出所有 table 个没有 ID 的名称。

SELECT   tableName 
FROM     (
          SELECT DISTINCT
                  t.name AS tableName
                 ,c.name AS columnName
          FROM    sys.tables t
          INNER JOIN sys.columns C
                  ON c.object_id = t.object_id
         ) AS t
WHERE columnName NOT IN( 'ID')
GROUP BY tableName

Answer 6

如果您不想看到系统表，那么..

SELECT DISTINCT OBJECT_NAME(OBJECT_ID) TableName FROM SYS.COLUMNS WHERE NAME <> 'id' 
and OBJECTPROPERTY (OBJECT_ID, 'IsUserTable') = 1

EXCEPT

SELECT DISTINCT OBJECT_NAME(OBJECT_ID) TableName FROM SYS.COLUMNS WHERE NAME = 'id'

查找特定列不存在的表 sql 服务器

Find tables for which specific column not exists sql server

sql-server