如何在SQL Server中选择特定的列名

Here is my previous question on how to iterate a string in SQL Server:

下面是我之前关于如何在SQL Server中迭代字符串的问题:

Now how can I specifically select column names? here is my code for selecting columns:

现在我如何特别选择列名呢?下面是我选择列的代码:

SELECT 'Field '+CAST(ROW_NUMBER() OVER (ORDER BY ordinal_position) AS varchar(5))+': ' + 
COLUMN_NAME
FROM information_schema.columns 
WHERE table_Name = 'SystemDefined' and table_schema = 'schemaAsset'

Here is the output:

这是输出:

Field 1: Asset_No
Field 2: AssetCategory
Field 3: AssetClassification
Field 4: PurchaseType
Field 5: Department
Field 6: RespPerson
Field 7: Status
Field 8: Location

This the output I want when selecting specific column names:

这是我在选择特定列名时需要的输出:

Field 1: Asset_No
Field 2: AssetCategory
Field 3: AssetClassification
Field 4: PurchaseType
Field 5: Department
Field 6: RespPerson
Field 7: Status

3 个解决方案

#1

How about using NOT IN which you can use on the WHERE clause to specify for another condition.

如何使用NOT，您可以在WHERE子句中指定另一个条件。

SELECT...
FROM..
WHERE  table_Name = 'SystemDefined' AND 
       table_schema = 'schemaAsset' AND
       COLUMN_NAME NOT IN ('Status',....) --  specify the list of names you
                                          -- don't want to show

#2

Unless I am missing something, you can just use a WHERE clause to exclude the column(s) you do not want:

除非我遗漏了什么，否则您可以使用WHERE子句来排除您不想要的列:

SELECT 'Field '
  + CAST(ROW_NUMBER() OVER (ORDER BY ordinal_position) AS varchar(5))+': ' 
  + COLUMN_NAME
FROM information_schema.columns 
WHERE table_Name = 'SystemDefined' 
  and table_schema = 'schemaAsset'
  and COLUMN_NAME <> 'Location'

If you have multiple columns, then you can use NOT IN ('Location', 'etc')

如果有多个列，那么可以使用NOT IN ('Location'， 'etc')

#3

Recommend sys.columns instead of INFORMATION_SCHEMA (here's why).

推荐系统。列而不是INFORMATION_SCHEMA(原因如下)。

SELECT 'Column ' 
  + CONVERT(VARCHAR(5), ROW_NUMBER() OVER (ORDER BY column_id))
  + ': ' + name
FROM sys.columns
WHERE [object_id] = OBJECT_ID(N'schemaAsset.SystemDefined')
AND name NOT IN ('Location' /* , ... other columns ... */)
ORDER BY column_id; -- because you never know how SQL Server might order

#1