在 Sql 个表中显示特定列

Question

如何仅显示 INFORMATION_SCHEMA.COLUMNS 架构中的特定列？

X:

SELECT COLUMN_NAME
FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_NAME = 'rate_Structure'
ORDER BY ORDINAL_POSITION

Returns:

+-------------+
|             |
| COLUMN_NAME |
+-------------+
|    a        |
|    b        |
|    c        |
|    d        |
|    e        |
+-------------+

如何只显示 a 和 e 列？

Answer 1

您需要添加其他条件，例如：

SELECT COLUMN_NAME 
FROM INFORMATION_SCHEMA.COLUMNS 
WHERE TABLE_NAME = 'rate_Structure'  
  AND data_type = 'int'    -- condition to get only specific columns
ORDER BY ORDINAL_POSITION;

Answer 2

在

中添加另一个条件

SELECT COLUMN_NAME    
FROM INFORMATION_SCHEMA.COLUMNS    
WHERE TABLE_NAME = 'rate_Structure' and COLUMN_NAME in ('a','c')    
ORDER BY ORDINAL_POSITION

Answer 3

how to Show only a and e columns

简单地说，通过将 WHERE 子句中的结果过滤为

SELECT COLUMN_NAME    
FROM INFORMATION_SCHEMA.COLUMNS    
WHERE TABLE_NAME = 'rate_Structure' and COLUMN_NAME in ('a','e') 
-- You can also use: and (COLUMN_NAME = 'a' or COLUMN_NAME = 'e')    
ORDER BY ORDINAL_POSITION

您需要添加条件才能获得所需的内容，and COLUMN_NAME in ('a','e') 将 return 只有 COLUMN_NAME 具有 'a' 或 'e' 值。

Answer 4

您可以使用INFORMATION_SCHEMA.COLUMNS如下

USE Test
GO
SELECT * FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_NAME = 'SalesTerritory'
AND COLUMN_NAME = 'Region'

在 Sql 个表中显示特定列

Display specific columns in Sql Tables

sql

tsql

sql-server

schema

database-schema