獲取數據表中列的描述值

前面有寫過《MS SQL爲字段添加說明》http://www.javashuo.com/article/p-qpqosgjd-gq.html

現現在，咱們獲取這些字段的描述值。

先來看一句SELECT語句：

 

SELECT * FROM sys.extended_properties
GO

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如上SQL語句，雖然獲得描述的值，但咱們不清楚是哪一張表，和哪個字段的說明。

所以，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

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