VB.Net/Database ADO.net/SqlCommand Drop
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
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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
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