в 16:40, 26 мая 2010

2010-05-26T16:40:06Z

Admin: 1 версия

2010-05-26T12:44:54Z

1 версия

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==Drop a Database through SqlConnection==

<source lang="vbnet">
Imports System
Imports System.Data
Imports System.Data.SqlClient
public class MainClass
Shared Sub Main()
Dim thisConnection As New SqlConnection("server=(local)\SQLEXPRESS;" & _
"integrated security=sspi;database=MyDatabase")
"Create Command object
Dim nonqueryCommand As SqlCommand = thisConnection.CreateCommand()
Try
" Open Connection
thisConnection.Open()
Console.WriteLine("Connection Opened")
" Execute NonQuery To Create Database
nonqueryCommand.rumandText = "CREATE DATABASE MyDb"
Console.WriteLine("Executing {0}",nonqueryCommand.rumandText)
Console.WriteLine("Number of rows affected : {0}",nonqueryCommand.ExecuteNonQuery())

" Execute NonQuery To Drop Database
nonqueryCommand.rumandText = "Drop DATABASE MyDb"
Console.WriteLine("Executing {0}",nonqueryCommand.rumandText)
Console.WriteLine("Number of rows affected : {0}",nonqueryCommand.ExecuteNonQuery())

Catch ex As SqlException
" Display error
Console.WriteLine("Error: " & ex.ToString())
Finally
" Close Connection
thisConnection.Close()
Console.WriteLine("Connection Closed")
End Try
End Sub
End Class

</source>

==Execute NonQuery To Drop a Table and report how many rows affected==

<source lang="vbnet">
Imports System
Imports System.Data
Imports System.Data.SqlClient
public class MainClass
Shared Sub Main()
Dim thisConnection As New SqlConnection("server=(local)\SQLEXPRESS;" & _
"integrated security=sspi;database=tempdb")
"Create Command object
Dim nonqueryCommand As SqlCommand = thisConnection.CreateCommand()
Try
" Open Connection
thisConnection.Open()
Console.WriteLine("Connection Opened")

" Execute NonQuery To Create Table
nonqueryCommand.rumandText = "CREATE TABLE MyTable (ID integer)"
Console.WriteLine("Executing {0}", nonqueryCommand.rumandText)
Console.WriteLine("Number of rows affected : {0}", nonqueryCommand.ExecuteNonQuery())
" Execute NonQuery To Drop Table
nonqueryCommand.rumandText = "DROP TABLE MyTable"
Console.WriteLine("Executing {0}", nonqueryCommand.rumandText)
Console.WriteLine("Number of rows affected : {0}", nonqueryCommand.ExecuteNonQuery())
Catch ex As SqlException
" Display error
Console.WriteLine("Error: " & ex.ToString())
Finally
" Close Connection
thisConnection.Close()
Console.WriteLine("Connection Closed")
End Try
End Sub
End Class

</source>

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VB.Net/Database ADO.net/SqlCommand Drop - История изменений

в 16:40, 26 мая 2010

Admin: 1 версия