程式思想:用SELECT name From sysobjects WHERE xtype = 'u'得到所有表,然後迴圈開啟表,根據Rs_Colums.Fields(I).Name 得到欄位名,FieldType(Rs_Colums.Fields(I).Type) 得到欄位類型,Rs_Colums.Fields(I).DefinedSize '寬度
由於Rs_Colums.Fields(I).Type傳回型別是數字,程式中寫了一個FieldType函數轉化成中文類型
Private Sub Command1_Click()
Dim Cn As New ADODB.Connection
Dim Rs_Table As New ADODB.Recordset
Dim Rs_Colums As New ADODB.Recordset
With Cn '定義串連
.CursorLocation = adUseClient
.Provider = "sqloledb"
.Properties("Data Source").Value = "LIHG"
.Properties("Initial Catalog").Value = "NorthWind"
.Properties("User ID") = "sa"
.Properties("Password") = "sa"
.Properties("prompt") = adPromptNever
.ConnectionTimeout = 15
.Open
If .State = adStateOpen Then
Rs_Table.CursorLocation = adUseClient '得到所有表名
Rs_Table.Open "SELECT name From sysobjects WHERE xtype = 'u'", Cn, adOpenDynamic, adLockReadOnly
Rs_Table.MoveFirst
Do While Not Rs_Table.EOF
Debug.Print Rs_Table.Fields("name")
Rs_Colums.CursorLocation = adUseClient
Rs_Colums.Open "select top 1 * from [" & Rs_Table.Fields("name") & "]", Cn, adOpenStatic, adLockReadOnly
For I = 0 To Rs_Colums.Fields.Count - 1 ' 迴圈所有列
Debug.Print Rs_Colums.Fields(I).Name '欄位名
Debug.Print FieldType(Rs_Colums.Fields(I).Type) '欄位類型
Debug.Print Rs_Colums.Fields(I).DefinedSize '寬度
Next
Rs_Colums.Close
Rs_Table.MoveNext
Loop
Rs_Table.Close
Set Rs_Colums = Nothing
Set Rs_Table = Nothing
Else
MsgBox "資料庫連接失敗,請找系統管理員進行檢查 !", 16, cProgramName
End
End If
End With
End Sub
'*********************************************************
'* 名稱:FieldType
'* 功能:返回欄位類型
'* 用法:FieldType(nType as integer)
'*********************************************************
Function FieldType(nType As Integer) As String
Select Case nType
Case 128
FieldType = "BINARY"
Case 11
FieldType = "BIT"
Case 129
FieldType = "CHAR"
Case 135
FieldType = "DATETIME"
Case 131
FieldType = "DECIMAL"
Case 5
FieldType = "FLOAT"
Case 205
FieldType = "IMAGE"
Case 3
FieldType = "INT"
Case 6
FieldType = "MONEY"
Case 130
FieldType = "NCHAR"
Case 203
FieldType = "NTEXT"
Case 131
FieldType = "NUMERIC"
Case 202
FieldType = "NVARCHAR"
Case 4
FieldType = "REAL"
Case 135
FieldType = "SMALLDATETIME"
Case 2
FieldType = "SMALLMONEY"
Case 6
FieldType = "TEXT"
Case 201
FieldType = "TIMESTAMP"
Case 128
FieldType = "TINYINT"
Case 17
FieldType = "UNIQUEIDENTIFIER"
Case 72
FieldType = "VARBINARY"
Case 204
FieldType = "VARCHAR"
Case 200
FieldType = ""
End Select
End Function
此程式只是一個雛形,可以在此基礎上開發成一個工具使用
本程式在:VB 6.0 ,SQL SERVER 2000下運行通過
注程式中須引用ActiveX Data Objects (ADO)