SQL Server 2005查找某個數據類型的數據庫中的所有列

Question

有沒有辦法查詢系統表以查找具有特定數據類型的數據庫中的所有列。

例如，如果我需要知道表名和數據類型= ntext

有沒有辦法做到這一點的列？

Answer 1

試試這個：

SELECT a.name -- OR a.* 
    FROM syscolumns a INNER JOIN systypes b 
    ON a.xtype = b.xtype 
    AND b.name = 'ntext' -- OR OTHER DATA TYPE. 

Answer 2

試試這個

SELECT o.name AS 'Table Name', c.name AS 'Column Name' FROM sysobjects AS o 
INNER JOIN syscolumns AS c ON o.name = c.object_id 
INNER JOIN systypes AS t ON t.xtype = c.xtype 
WHERE b.name = ' ntext' 

希望這有助於。

Answer 3

SELECT so.name, sc.name 
    FROM sys.objects so 
    JOIN sys.columns sc ON so.object_id = sc.object_id 
    JOIN sys.types stp ON sc.user_type_id = stp.user_type_id 
        AND stp.name = 'ntext' 
WHERE so.type = 'U' -- to show only user tables 

Answer 4

我知道這個問題已經被回答了，但是我想把表名添加到結果集中，這個查詢就是這麼做的。

SELECT a.name, o.name AS TableName, o.type, a.id, o.object_id, o.schema_id 
FROM sys.syscolumns AS a INNER JOIN sys.systypes AS b ON a.xtype = b.xtype 
AND b.name = 'char' 
AND a.length = 6 INNER JOIN 
sys.objects AS o ON a.id = o.object_id 
WHERE (o.type = 'u') 
AND (o.schema_id = 1)