將SQL Server所有表的列信息顯示出來

正在作一個關於SQL Server數據庫導入Excel文件的程序，要讀取數據庫中的列的信息，從網上找了很多資料，終於總結出來比較理想的sql語句，執行後返回的列分別是：表名、列名、列類型、列長度、列描述、是否主鍵，語句如下：

1　Select Sysobjects.Name As Tb_name, Syscolumns.Name As Col_name, Systypes.Name As Col_type, Syscolumns.Length As Col_len, Isnull(SyspropertIEs.Value,Syscolumns.Name) As Col_memo,
2　Case When Syscolumns.Name In
3　(Select 主鍵=A.Name
4　From Syscolumns A
5　Inner Join Sysobjects B On A.Id=B.Id And B.Xtype='U' And B.Name<>'DtpropertIEs'
6　Where Exists(Select 1 From Sysobjects Where Xtype='Pk' And Name In (
7　Select Name From Sysindexes Where Indid In(
8　Select Indid From Sysindexkeys Where Id = A.Id And Colid=A.Colid
9　)))
10　And B.Name=Sysobjects.Name
11　)
12　Then 1 Else 0 End As Is_key
13
14　From Sysobjects,Systypes,Syscolumns
15　Left Join Sysproperties On (Syscolumns.Id = SyspropertIEs.Id And
16　Syscolumns.Colid = SyspropertIEs.Smallid)
17
18　Where (Sysobjects.Xtype ='U' Or Sysobjects.Xtype ='V')
19　And Sysobjects.Id = Syscolumns.Id And Systypes.Xtype = Syscolumns.Xtype
20　And Systypes.Name <> 'Sysname' And Sysobjects.Name Like '%' Order By Sysobjects.Name, Syscolumns.Colid

結果如圖：


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