Rollback Method (SQLiteConnection)

In This Topic

Rolls back a transaction from a pending state.

Syntax

Visual Basic
C#

'Declaration
 
Public Sub Rollback()

public void Rollback()

Example

The following example demonstrates how to use Commit and Rollback methods.

csharp

public void RunSQLiteTransaction(string myConnString)
{
  SQLiteConnection sqConnection = new SQLiteConnection(myConnString);
  sqConnection.Open();

  SQLiteCommand sqCommand = new SQLiteCommand();
  sqConnection.BeginTransaction();
  try
  {
    sqCommand.CommandText = "INSERT INTO Dept(DeptNo, DName) Values(50, 'DEVELOPMENT')";
    sqCommand.ExecuteNonQuery();
    sqCommand.CommandText = "INSERT INTO Dept(DeptNo, DName) Values(60, 'PRODUCTION')";
    sqCommand.ExecuteNonQuery();
    sqConnection.Commit();
    Console.WriteLine("Both records are written to database.");
  }
  catch(Exception e)
  {
    sqConnection.Rollback();
    Console.WriteLine(e.ToString());
    Console.WriteLine("Neither record was written to database.");
  }
  finally
  {
    sqConnection.Close();
  }
}

Visual Basic

Public Sub RunSQLiteTransaction(myConnString As String)
  Dim sqConnection As New SQLiteConnection(myConnString)
  sqConnection.Open()

  Dim sqCommand As New SQLiteCommand()
  sqConnection.BeginTransaction()
  Try
    sqCommand.CommandText = "INSERT INTO Dept(DeptNo, DName) Values(50, 'DEVELOPMENT')"
    sqCommand.ExecuteNonQuery()
    sqCommand.CommandText = "INSERT INTO Dept(DeptNo, DName) Values(60, 'PRODUCTION')"
    sqCommand.ExecuteNonQuery()
    sqConnection.Commit()
    Console.WriteLine("Both records are written to database.")
  Catch e As Exception
    sqConnection.Rollback()
    Console.WriteLine(e.ToString())
    Console.WriteLine("Neither record was written to database.")
  Finally
    sqConnection.Close()
  End Try
End Sub

Requirements

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

SQLiteConnection Class
SQLiteConnection Members
Commit Method
BeginTransaction Method

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