C#实现数据库事务处理的简单示例代码
最近做了个小项目,其中要对两个表同时进行插入insert操作处理,而且对它们的插入操作要么全部成功,要么都插入失败,否则只插入一个表成功会引起数据库的不一致。很显然,这是一个事务处理(transcation),要么commit成功,要么则rollback。在代码中,我利用的是C#中提供的Transcation类来实现,代码如下:
最近做了个小项目,其中要对两个表同时进行插入insert操作处理,而且对它们的插入操作要么全部成功,要么都插入失败,否则只插入一个表成功会引起数据库的不一致。很显然,这是一个事务处理(transcation),要么commit成功,要么则rollback。在代码中,我利用的是C#中提供的Transcation类来实现,代码如下:
private
void
btn_submit_Click(
object
sender, System.EventArgs e)
{
string strconn = ConfigurationSettings.AppSettings[ " dsn " ];
SqlConnection cnn = new SqlConnection(strconn);
SqlCommand cmd = new SqlCommand();
SqlTransaction transaction = null ;
try
{
cnn.Open();
// 先插入分店shop表,再插入经理Manager表,并将其作为一个事务进行处理
transaction = cnn.BeginTransaction();
cmd.Transaction = transaction;
cmd.Connection = cnn;
// 插入分店shop表
string shopstr = " insert into shop values(' " + tbx_shopid.Text + " ',' " + tbx_shopname.Text + " ',' " + tbx_shopaddress.Text + " ',' " + tbx_shopphone.Text + " ') " ;
cmd.CommandType = CommandType.Text;
cmd.CommandText = shopstr;
cmd.ExecuteNonQuery();
// 插入经理Manager表
string managerstr = " insert into manager values(' " + tbx_managerid.Text + " ',' " + tbx_managerpassword.Text + " ',' " + tbx_managername.Text + " ',' " + tbx_shopid.Text + " ') " ;
cmd.CommandType = CommandType.Text;
cmd.CommandText = managerstr;
cmd.ExecuteNonQuery();
// 提交事务
transaction.Commit();
lbl_msg.Text = " 添加分店操作成功 " ;
}
catch (Exception ex)
{
lbl_msg.Text = " 添加分店操作失败 " ;
transaction.Rollback();
}
finally
{
cnn.Close();
}
}
{
string strconn = ConfigurationSettings.AppSettings[ " dsn " ];
SqlConnection cnn = new SqlConnection(strconn);
SqlCommand cmd = new SqlCommand();
SqlTransaction transaction = null ;
try
{
cnn.Open();
// 先插入分店shop表,再插入经理Manager表,并将其作为一个事务进行处理
transaction = cnn.BeginTransaction();
cmd.Transaction = transaction;
cmd.Connection = cnn;
// 插入分店shop表
string shopstr = " insert into shop values(' " + tbx_shopid.Text + " ',' " + tbx_shopname.Text + " ',' " + tbx_shopaddress.Text + " ',' " + tbx_shopphone.Text + " ') " ;
cmd.CommandType = CommandType.Text;
cmd.CommandText = shopstr;
cmd.ExecuteNonQuery();
// 插入经理Manager表
string managerstr = " insert into manager values(' " + tbx_managerid.Text + " ',' " + tbx_managerpassword.Text + " ',' " + tbx_managername.Text + " ',' " + tbx_shopid.Text + " ') " ;
cmd.CommandType = CommandType.Text;
cmd.CommandText = managerstr;
cmd.ExecuteNonQuery();
// 提交事务
transaction.Commit();
lbl_msg.Text = " 添加分店操作成功 " ;
}
catch (Exception ex)
{
lbl_msg.Text = " 添加分店操作失败 " ;
transaction.Rollback();
}
finally
{
cnn.Close();
}
}