獲取數據表中列的描述值

前面有寫過《MS SQL為欄位添加說明》https://www.cnblogs.com/insus/p/12106589.html

現如今，我們獲取這些欄位的描述值。

先來看一句SELECT語句：

SELECT * FROM sys.extended_properties
GO

如上SQL語句，雖然得到描述的值，但我們不清楚是哪一張表，和哪一個欄位的說明。

因此，得使用系統另外對象來關聯查詢：

SELECT t.[name] AS [Table_Name],c.[name] AS [Column_Name],e.[value] AS [Column_Description]
FROM sys.tables t
INNER JOIN sys.columns c ON(t.[object_id] = c.[object_id])
LEFT JOIN sys.extended_properties e ON (t.[object_id] = e.[major_id] AND c.[column_id] = e.[minor_id] AND e.[name] = 'MS_Description')

GO