SQL CE

註冊 RDA REGSVR32

IIS 設定 新增虛擬目錄

IIS 設定 輸入虛擬目錄名稱

IIS 設定 輸入虛擬目錄位置

IIS 設定 輸入虛擬目錄權限 ( 執行一定要勾 )

IIS 設定 設定完成

連線 SQL Server reference installation

連線 SQL Server InitDB

圖片顯示 顯示圖片 Private Sub Form_Activate() Dim strpath As String strpath = App.Path If strpath = "\" Then strpath = "" End If PictureBox1.Picture = strpath & "\a1.bmp" End Sub

宣告連線變數 所有變數宣告在 Module 中 Const DBFileSpec = "\My Documents\" ' PDA 上 SQL 資料庫位置所在 Const DBName = “ employee.sdf ” ‘ PDA 上 SQL 資料庫名稱 ' 連接 server 上的 SQL Server Const strRemoteProvider = "Provider=sqloledb;Initial Catalog=Northwind;" Const SQLEProvider = "Provider=Microsoft.SQLSERVER.OLEDB.CE.2.0; data source=" ' Dim strRemoteSQLServerName As String 'SQL 主機名稱 Dim strRemoteSQLServerUID As String 'SQL 帳號 Dim strRemoteSQLServerPwd As String 'SQL 密碼 Dim strInternetURL As String 'RDA.DLL 所在位置 Dim strRemoteConnect As String ‘ 連接 SQL SERVER 連線參數 Dim strDBFileName As String ‘ pda 上的資料庫 Dim cnADO As ADOCE.Connection ‘ 操作 pda 上的 sdf 資料庫的 connection

設定連線參數值 設定連接參數 Private Sub InitDB() ' 聯結 PDA 上的 SQL 資料庫，判斷是否要覆蓋或繼續使用 strRemoteSQLServerName = txtRemoteHost.Text ' SQL Server strRemoteSQLServerUID = txtUserID.Text ' SQL Server 帳號 strRemoteSQLServerPwd = txtUserPasswd.Text ' SQL Server 密碼 strInternetURL = txtsaURL.Text 'RDA.DLL 所在位置 ' 連接資料庫 strRemoteConnect = strRemoteProvider & "Data Source=" & strRemoteSQLServerName & ";UID=" & strRemoteSQLServerUID & ";password=" & strRemoteSQLServerPwd MsgBox “ SQL Server 資料庫初始成功，可以開始進行上傳或下載資料的動作！ “ download_upload.Show End Sub

連線 SQL Server download_upload COMMAND1 command2

從 SQL Server 下載資料 I Dim ceRDA As SSCE.RemoteDataAccess ‘ 全域變數 Private Sub Command1_Click() ' 下載資料 Dim CreateDBFlag As Boolean Dim intTemp As Integer ' ‘ 判斷是否要在 PDA 重新產生 SQL 檔案 CreateDBFlag = True ' strDBFileName = DBFileSpec & DBName ' PDA 上資料庫所在位置與路徑 If DBExists(strDBFileName) = True Then ' 檢查 PDA 上的資料庫是否存在 intTemp = MsgBox(" 要覆寫資料庫嗎？ " & strDBFileName & " ?", vbYesNoCancel, " 資 料庫已經存在 ") If intTemp = vbYes Then ' 確定覆寫 FileSystem1.Kill strDBFileName ' 刪除目前資料 Else CreateDBFlag = False End If

從 SQL Server 下載資料 II ‘ 接前頁 ' If CreateDBFlag = True Then CreateDB ' 在 PDA 上建立 SQL 資料庫 download_from_sql ' 開始下載資料 **************** Else Exit Sub End If End Sub

CreateDB ' 在 PDA 上建立 SQL 資料庫 Private Sub CreateDB() Dim cat As ADOXCE.Catalog Set cat = CreateObject("ADOXCE.Catalog.3.1") ' 在 PDA 上建立 SQL 資料庫 cat.Create (SQLEProvider & strDBFileName) Set cat = Nothing End Sub

download_from_sql - I ' 下載資料 ************************ Sub download_from_sql() Dim sr As String ShowHourGlass ' 顯示漏斗 If connOpen=true then ' 開啟 PDA 上的 SQL 資料庫 ' If TableExists(cnADO, “ employees") = True Then 'cnADO 代表開啟的 SQL 資料庫的 employees 資料表 cnADO.Execute ("drop table employees") ' 刪除資料表 employees End If

download_from_sql - II ' connClose ' 關閉 SQL 資料庫 ' ' 連結遠端 SQL SERVER Set ceRDA = CreateObject("SSCE.RemoteDataAccess.2.0") ceRDA.LocalConnectionString = SQLEProvider & strDBFileName ceRDA.InternetURL = strInternetURL ' strRemoteConnect 代表 SQL Server 資料庫 ‘ Pull 代表將資料由 SQL Serve 取出放入 PDA 上的 SQL 資料庫中 ceRDA.Pull “ employees", "SELECT * FROM employees", strRemoteConnect, TRACKINGON

download_from_sql - III If ceRDA.ErrorRecords.Count > 0 Then ShowErrors ceRDA.ErrorRecords ' 顯示錯誤訊息 Else MsgBox " 資料下載成功 !" End If Set ceRDA = Nothing End if ShowArrow ‘ 恢復游標 End Sub

connOpen ' 開啟 PDA 上的 SQL 資料庫 GPS.SDF 檔案 Function connOpen() As Boolean connOpen = False Set cnADO = CreateObject( “ ADOCE.Connection.3.1 ” ) ‘ module 中宣告 cnADO.Open (SQLEProvider & strDBFileName) If cnADO.Errors.Count = 0 Then connOpen = True ' 沒有錯誤代表開啟成功 Else MsgBox "PDA 上的 SQL 資料庫開啟失敗 " End If End Function

connClose ' 關閉 PDA 上的 SQL 資料庫 Sub connClose() On Error Resume Next cnADO.Close End Sub

TableExists Private Function TableExists(paramcnADO As ADOCE.Connection, paramTableName As String) As Boolean Dim catTable As ADOXCE.Table Dim cat As ADOXCE.Catalog TableExists = False Set cat = CreateObject("ADOXCE.Catalog.3.1") cat.ActiveConnection = paramcnADO For Each catTable In cat.Tables If InStr(1, catTable.Name, paramTableName) <> 0 Then TableExists = True Next Set catTable = Nothing Set cat = Nothing End Function

ShowHourGlass & ShowArrow ' 改變游標變成漏斗 Public Sub ShowHourGlass() Screen.MousePointer = 11 End Sub ' 回覆游標 Public Sub ShowArrow() Screen.MousePointer = 1 End Sub

Summary 透過 RDA 連接 SQL Server CERDA Set ceRDA = CreateObject("SSCE.RemoteDataAccess.2.0") ceRDA.LocalConnectionString = SQLEProvider ceRDA.InternetURL = RDA 的 URL 取值 / 回傳值 ceRDA.Pull "goods", "SELECT * FROM goods", strRemoteConnect, TRACKINGON ceRDA.Push "goods", strRemoteConnect 連接遠端 SQL Server 參數 strRemoteProvider ="Provider=sqloledb;Initial Catalog=wealth;" strRemoteConnect = strRemoteProvider & "Data Source=" & strRemoteSQLServerName & ";UID=" & strRemoteSQLServerUID & ";password=" & strRemoteSQLServerPwd 操作 PDA 本機 SQL Server CE ADOCE SQLEProvider ="Provider=Microsoft.SQLSERVER.OLEDB.CE.2.0; data source=a.sdf" Set cnADO = CreateObject("ADOCE.Connection.3.1") cnADO.Open (SQLEProvider)

顯示資料 Dim ssql As String connOpen ' 開啟 PDA SQL 資料庫 ssql = "select * from student" Set rs = CreateObject("ADOCE.Recordset.3.1") rs.Open ssql, cnADO, adOpenDynamic, adLockPessimistic rs.MoveFirst Label1.Caption = rs("name") Label2.Caption = rs("age") grid Private Sub Form_OKClick() connClose Me.Hide End Sub

顯示資料 Sub grid() Dim i, j As Integer GridCtrl1.Rows = totalcount + 1 GridCtrl1.Cols = 2 GridCtrl1.Row = 0 GridCtrl1.Col = 0 GridCtrl1.Text = “ 編號 " GridCtrl1.Col = 1 GridCtrl1.Text = " 名稱 " rs.movefirst For i = 1 To totalcount GridCtrl1.Row = i For j = 0 To 1 GridCtrl1.Col = j Select Case j Case 0: GridCtrl1.Text = rs("goods_code") Case 1: GridCtrl1.Text = rs("goods_name") End Select Next rs.MoveNext Next End Sub

更改資料 Dim ssql As String Set rs1 = CreateObject("ADOCE.Recordset.3.1") rs1.Open "update student set name = '" & Text1.Text & "' where id ='" & rs("id") & "'", cnADO, adOpenDynamic, adLockPessimistic Set rs1 = Nothing If rs.State = 1 Then rs.Close ssql = "select * from student" rs.Open ssql, cnADO, adOpenDynamic, adLockPessimistic grid

新增資料－資料庫欄位屬性修正

新增資料 Dim ssql As String Set rs1 = CreateObject("ADOCE.Recordset.3.1") rs1.Open "insert into student (name,age) values ('" & Text1.Text & "',12)", cnADO, adOpenDynamic, adLockPessimistic Set rs1 = Nothing If rs.State = 1 Then rs.Close ssql = "select * from student" rs.Open ssql, cnADO, adOpenDynamic, adLockPessimistic grid

上傳資料 ' 上傳資料到 Server Private Sub Command2_Click() connClose ShowHourGlass ' 顯示漏斗 strDBFilename = DBFileLoc & DBName ' PDA 上資料庫所在位置與路徑 Set ceRDA = CreateObject("SSCE.RemoteDataAccess.2.0") ceRDA.LocalConnectionString = SQLEProvider & strDBFilename ceRDA.InternetURL = strInternetURL ' 將資料回存到 SQL Server 中 ceRDA.Push "student", strRemoteConnect If ceRDA.ErrorRecords.Count > 0 Then ShowErrors ceRDA.ErrorRecords ' 顯示錯誤訊息 Else MsgBox " 資料上傳成功 !" End If Set ceRDA = Nothing ShowArrow ' 恢復游標 End Sub