教你创建动态MSSQL 数据库表(6)_MySQL
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2024-02-13 11:38:46
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'浏览表数据
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
'浏览存储过程
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
'浏览视图
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)
' 打开连接
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
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
'浏览存储过程
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
'浏览视图
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)
' 打开连接
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