動態建立SQL Server資料庫、表、預存程序

 

下面是利用SQL語句建立資料庫、表、預存程序、視圖、索引、規則、修改表、查看資料等的方法。所要增加的控制項如下：

Imports System.Data
Imports System.Data.SqlClient

Public Class Form1
  Inherits System.Windows.Forms.Form
  Private ConnectionString As String = "Data Source=.;Initial Catalog=;User Id=sa;Password=;"
  Private reader As SqlDataReader = Nothing
  Private conn As SqlConnection = Nothing
  Private cmd As SqlCommand = Nothing
  Private AlterTableBtn As System.Windows.Forms.Button
  Private sql As String = Nothing
  Private CreateOthersBtn As System.Windows.Forms.Button

#Region " Windows 表單設計器產生的程式碼 "
  '表單重寫處置以清理組件列表。
  Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
    If disposing Then
      If Not (components Is Nothing) Then
        components.Dispose()
      End If
    End If
    MyBase.Dispose(disposing)
  End Sub
  Public Sub New()
    MyBase.New()
    InitializeComponent()
  End Sub
  Private components As System.ComponentModel.IContainer
  Friend WithEvents DataGrid1 As System.Windows.Forms.DataGrid
  Friend WithEvents CreateDBBtn As System.Windows.Forms.Button
  Friend WithEvents CreateTableBtn As System.Windows.Forms.Button
  Friend WithEvents CreateSPBtn As System.Windows.Forms.Button
  Friend WithEvents CreateViewBtn As System.Windows.Forms.Button
  Friend WithEvents btnAlterTable As System.Windows.Forms.Button
  Friend WithEvents btnCreateOthers As System.Windows.Forms.Button
  Friend WithEvents btnDropTable As System.Windows.Forms.Button
  Friend WithEvents btnViewData As System.Windows.Forms.Button
  Friend WithEvents btnViewSP As System.Windows.Forms.Button
  Friend WithEvents btnViewView As System.Windows.Forms.Button
  <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
    Me.CreateDBBtn = New System.Windows.Forms.Button()
    Me.CreateTableBtn = New System.Windows.Forms.Button()
    Me.CreateSPBtn = New System.Windows.Forms.Button()
    Me.CreateViewBtn = New System.Windows.Forms.Button()
    Me.btnAlterTable = New System.Windows.Forms.Button()
    Me.btnCreateOthers = New System.Windows.Forms.Button()
    Me.btnDropTable = New System.Windows.Forms.Button()
    Me.btnViewData = New System.Windows.Forms.Button()
    Me.btnViewSP = New System.Windows.Forms.Button()
    Me.btnViewView = New System.Windows.Forms.Button()
    Me.DataGrid1 = New System.Windows.Forms.DataGrid()
    CType(Me.DataGrid1, System.ComponentModel.ISupportInitialize).BeginInit()
    Me.SuspendLayout()
    '
    'CreateDBBtn
    '
    Me.CreateDBBtn.Location = New System.Drawing.Point(19, 9)
    Me.CreateDBBtn.Name = "CreateDBBtn"
    Me.CreateDBBtn.Size = New System.Drawing.Size(104, 23)
    Me.CreateDBBtn.TabIndex = 0
    Me.CreateDBBtn.Text = "建立資料庫"
    '
    'CreateTableBtn
    '
    Me.CreateTableBtn.Location = New System.Drawing.Point(139, 9)
    Me.CreateTableBtn.Name = "CreateTableBtn"
    Me.CreateTableBtn.TabIndex = 1
    Me.CreateTableBtn.Text = "建立表"
    '
    'CreateSPBtn
    '
    Me.CreateSPBtn.Location = New System.Drawing.Point(230, 9)
    Me.CreateSPBtn.Name = "CreateSPBtn"
    Me.CreateSPBtn.Size = New System.Drawing.Size(104, 23)
    Me.CreateSPBtn.TabIndex = 2
    Me.CreateSPBtn.Text = "建立預存程序"
    '
    'CreateViewBtn
    '
    Me.CreateViewBtn.Location = New System.Drawing.Point(350, 9)
    Me.CreateViewBtn.Name = "CreateViewBtn"
    Me.CreateViewBtn.TabIndex = 3
    Me.CreateViewBtn.Text = "建立視圖"
    '
    'btnAlterTable
    '
    Me.btnAlterTable.Location = New System.Drawing.Point(441, 9)
    Me.btnAlterTable.Name = "btnAlterTable"
    Me.btnAlterTable.TabIndex = 4
    Me.btnAlterTable.Text = "修改表"
    '
    'btnCreateOthers
    '
    Me.btnCreateOthers.Location = New System.Drawing.Point(17, 43)
    Me.btnCreateOthers.Name = "btnCreateOthers"
    Me.btnCreateOthers.Size = New System.Drawing.Size(104, 23)
    Me.btnCreateOthers.TabIndex = 5
    Me.btnCreateOthers.Text = "建立規則和索引"
    '
    'btnDropTable
    '
    Me.btnDropTable.Location = New System.Drawing.Point(138, 43)
    Me.btnDropTable.Name = "btnDropTable"
    Me.btnDropTable.TabIndex = 6
    Me.btnDropTable.Text = "刪除表"
    '
    'btnViewData
    '
    Me.btnViewData.Location = New System.Drawing.Point(351, 43)
    Me.btnViewData.Name = "btnViewData"
    Me.btnViewData.TabIndex = 7
    Me.btnViewData.Text = "查看資料"
    '
    'btnViewSP
    '
    Me.btnViewSP.Location = New System.Drawing.Point(230, 43)
    Me.btnViewSP.Name = "btnViewSP"
    Me.btnViewSP.Size = New System.Drawing.Size(104, 23)
    Me.btnViewSP.TabIndex = 8
    Me.btnViewSP.Text = "查看預存程序"
    '
    'btnViewView
    '
    Me.btnViewView.Location = New System.Drawing.Point(443, 43)
    Me.btnViewView.Name = "btnViewView"
    Me.btnViewView.TabIndex = 9
    Me.btnViewView.Text = "查看視圖"
    '
    'DataGrid1
    '
    Me.DataGrid1.DataMember = ""
    Me.DataGrid1.HeaderForeColor = System.Drawing.SystemColors.ControlText
    Me.DataGrid1.Location = New System.Drawing.Point(20, 76)
    Me.DataGrid1.Name = "DataGrid1"
    Me.DataGrid1.Size = New System.Drawing.Size(500, 183)
    Me.DataGrid1.TabIndex = 10
    '
    'Form1
    '
    Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
    Me.ClientSize = New System.Drawing.Size(538, 281)
    Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.DataGrid1, Me.btnViewView, _
              Me.btnViewSP, Me.btnViewData, Me.btnDropTable, Me.btnCreateOthers, Me.btnAlterTable, _
              Me.CreateViewBtn, Me.CreateSPBtn, Me.CreateTableBtn, Me.CreateDBBtn})
    Me.Name = "Form1"
    Me.Text = "動態建立SQL Server資料庫、表、預存程序等架構資訊"
    CType(Me.DataGrid1, System.ComponentModel.ISupportInitialize).EndInit()
    Me.ResumeLayout(False)

  End Sub

#End Region

  ' 建立資料庫
  Private Sub CreateDBBtn_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) _
    Handles CreateDBBtn.Click
    conn = New SqlConnection(ConnectionString)
    ' 開啟串連
    If conn.State <> ConnectionState.Open Then
      conn.Open()
    End If
    'MyDataBase為資料庫名稱
    Dim sql As String = "CREATE DATABASE MyDataBase ON PRIMARY (Name=MyDataBase_data, filename = " + _
        "'D:/MyDataBase.mdf', size=3," + "maxsize=5, filegrowth=10%) log on" + "(name=MyDataBase_log, " + _
        "filename='D:/MyDataBase.ldf',size=3," + "maxsize=20,filegrowth=1)"
    cmd = New SqlCommand(sql, conn)
    Try
      cmd.ExecuteNonQuery()
    Catch ae As SqlException
      MessageBox.Show(ae.Message.ToString())
    End Try
  End Sub
  '建立表
  Private Sub CreateTableBtn_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) _
    Handles CreateTableBtn.Click
    conn = New SqlConnection(ConnectionString)
    ' 開啟串連
    If conn.State = ConnectionState.Open Then
      conn.Close()
    End If
    ConnectionString = "Data Source=.;Initial Catalog=MyDataBase;User Id=sa;Password=;"
    conn.ConnectionString = ConnectionString
    conn.Open()
    sql = "CREATE TABLE myTable" + "(myId INTEGER CONSTRAINT PKeyMyId PRIMARY KEY," + _
      "myName CHAR(50) NOT Null, myAddress CHAR(255), myValues FLOAT)"
    cmd = New SqlCommand(sql, conn)
    Try
      cmd.ExecuteNonQuery()
      ' 添加紀錄
      sql = "INSERT INTO myTable(myId, myName, myAddress, myValues) " + _
        "VALUES (1001, _'【孟憲會之精彩世界】之一', 'http://xml.sz.luohuedu.net/', 100 ) "
      cmd = New SqlCommand(sql, conn)
      cmd.ExecuteNonQuery()
      sql = "INSERT INTO myTable(myId, myName, myAddress, myValues) " + _
        "VALUES (1002, '【孟憲會之精彩世界】之二', 'http://www.erp800.com/net_lover/', 99) "
      cmd = New SqlCommand(sql, conn)
      cmd.ExecuteNonQuery()
      sql = "INSERT INTO myTable(myId, myName, myAddress, myValues) " + _
        "VALUES (1003, '【孟憲會之精彩世界】之三', 'http://xml.sz.luohuedu.net/', 99) "
      cmd = New SqlCommand(sql, conn)
      cmd.ExecuteNonQuery()
      sql = "INSERT INTO myTable(myId, myName, myAddress, myValues) " + _
        "VALUES (1004, '【孟憲會之精彩世界】之四', 'http://www.erp800.com/net_lover/', 100) "
      cmd = New SqlCommand(sql, conn)
      cmd.ExecuteNonQuery()
    Catch ae As SqlException
      MessageBox.Show(ae.Message.ToString())
    End Try

  End Sub
  '建立預存程序
  Private Sub CreateSPBtn_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) _
    Handles CreateSPBtn.Click
    sql = "CREATE PROCEDURE myProc AS" + " SELECT myName, myAddress FROM myTable GO"
    ExecuteSQLStmt(sql)
  End Sub
  '建立視圖
  Private Sub CreateViewBtn_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) _
    Handles CreateViewBtn.Click
    sql = "CREATE VIEW myView AS SELECT myName FROM myTable"
    ExecuteSQLStmt(sql)

  End Sub
  '修改表
  Private Sub btnAlterTable_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) _
    Handles btnAlterTable.Click
    sql = "ALTER TABLE MyTable ADD newCol datetime NOT NULL DEFAULT (getdate())"
    ExecuteSQLStmt(sql)
  End Sub
  '建立規則和索引
  Private Sub btnCreateOthers_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) _
    Handles btnCreateOthers.Click
    sql = "CREATE UNIQUE INDEX " + "myIdx ON myTable(myName)"
    ExecuteSQLStmt(sql)

    sql = "CREATE RULE myRule " + "AS @myValues >= 90 AND @myValues < 9999"
    ExecuteSQLStmt(sql)
  End Sub

  '刪除表
  Private Sub btnDropTable_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) _
    Handles btnDropTable.Click
    Dim sql As String = "DROP TABLE MyTable"
    ExecuteSQLStmt(sql)
  End Sub
  '瀏覽表資料
  Private Sub btnViewData_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) _
    Handles btnViewData.Click
    conn = New SqlConnection(ConnectionString)
    If conn.State = ConnectionState.Open Then
      conn.Close()
    End If
    ConnectionString = "Data Source=.;Initial Catalog=MyDataBase;User Id=sa;Password=;"
    conn.ConnectionString = ConnectionString
    conn.Open()
    Dim da As New SqlDataAdapter("SELECT * FROM myTable", conn)
    Dim ds As New DataSet("myTable")
    da.Fill(ds, "myTable")
    DataGrid1.DataSource = ds.Tables("myTable").DefaultView
  End Sub
  '瀏覽預存程序
  Private Sub btnViewSP_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) _
    Handles btnViewSP.Click
    conn = New SqlConnection(ConnectionString)
    If conn.State = ConnectionState.Open Then
      conn.Close()
    End If
    ConnectionString = "Data Source=.;Initial Catalog=MyDataBase;User Id=sa;Password=;"
    conn.ConnectionString = ConnectionString
    conn.Open()
    Dim da As New SqlDataAdapter("myProc", conn)
    Dim ds As New DataSet("SP")
    da.Fill(ds, "SP")
    DataGrid1.DataSource = ds.DefaultViewManager
  End Sub
  '瀏覽視圖
  Private Sub btnViewView_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) _
    Handles btnViewView.Click
    conn = New SqlConnection(ConnectionString)
    If conn.State = ConnectionState.Open Then
      conn.Close()
    End If
    ConnectionString = "Data Source=.;Initial Catalog=MyDataBase;User Id=sa;Password=;"
    conn.ConnectionString = ConnectionString
    conn.Open()
    Dim da As New SqlDataAdapter("SELECT * FROM myView", conn)
    Dim ds As New DataSet()
    da.Fill(ds)
    DataGrid1.DataSource = ds.DefaultViewManager
  End Sub

  Private Sub ExecuteSQLStmt(ByVal sql As String)
    conn = New SqlConnection(ConnectionString)
    ' 開啟串連
    If conn.State = ConnectionState.Open Then
      conn.Close()
    End If
    ConnectionString = "Data Source=.;Initial Catalog=MyDataBase;User Id=sa;Password=;"
    conn.ConnectionString = ConnectionString
    conn.Open()
    cmd = New SqlCommand(sql, conn)
    Try
      cmd.ExecuteNonQuery()
    Catch ae As SqlException
      MessageBox.Show(ae.Message.ToString())
    End Try
  End Sub
End Class

轉自孟子E章專欄http://blog.csdn.net/net_lover/archive/2003/08/18/6942.aspx