begin transaction try --操作语句 commit transaction end trycatch rollback end catch
ADO.NET级事务using (SqlConnection connection = new SqlConnection(connectionString)) { connection.Open(); // Start a local transaction. SqlTransaction sqlTran = connection.BeginTransaction(); // Enlist a command in the current transaction. SqlCommand command = connection.CreateCommand(); command.Transaction = sqlTran; try { // Execute two separate commands. command.CommandText = "INSERT INTO Production.ScrapReason(Name) VALUES('Wrong size')"; command.ExecuteNonQuery(); command.CommandText = "INSERT INTO Production.ScrapReason(Name) VALUES('Wrong color')"; command.ExecuteNonQuery(); // Commit the transaction. sqlTran.Commit(); Console.WriteLine("Both records were written to database."); } catch (Exception ex) { // Handle the exception if the transaction fails to commit. Console.WriteLine(ex.Message); try { // Attempt to roll back the transaction. sqlTran.Rollback(); } catch (Exception exRollback) { // Throws an InvalidOperationException if the connection // is closed or the transaction has already been rolled // back on the server. Console.WriteLine(exRollback.Message); } } }
try
--操作语句
commit transaction
end trycatch
rollback
end catch
{
connection.Open(); // Start a local transaction.
SqlTransaction sqlTran = connection.BeginTransaction(); // Enlist a command in the current transaction.
SqlCommand command = connection.CreateCommand();
command.Transaction = sqlTran; try
{
// Execute two separate commands.
command.CommandText =
"INSERT INTO Production.ScrapReason(Name) VALUES('Wrong size')";
command.ExecuteNonQuery();
command.CommandText =
"INSERT INTO Production.ScrapReason(Name) VALUES('Wrong color')";
command.ExecuteNonQuery(); // Commit the transaction.
sqlTran.Commit();
Console.WriteLine("Both records were written to database.");
}
catch (Exception ex)
{
// Handle the exception if the transaction fails to commit.
Console.WriteLine(ex.Message); try
{
// Attempt to roll back the transaction.
sqlTran.Rollback();
}
catch (Exception exRollback)
{
// Throws an InvalidOperationException if the connection
// is closed or the transaction has already been rolled
// back on the server.
Console.WriteLine(exRollback.Message);
}
}
}