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2000字范文 > asp.net 中SQL备份还原

asp.net 中SQL备份还原

时间:2021-10-17 11:00:59

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asp.net 中SQL备份还原

1.备份

SqlConnection connection = new SqlConnection(ConfigurationManager.AppSettings["Connection"]);

string dbFileName = DateTime.Now.ToString("yyyyMMddHHmmss")+".bak";

try

{

SqlCommand command = new SqlCommand("use master;backup database xxdl to disk=@path;", connection);

connection.Open();

string path = Server.MapPath("~\\App_Data") + "\\" + dbFileName;

command.Parameters.AddWithValue("@path", path);

command.ExecuteNonQuery();

lblBackup.Text = "数据库备份成功";

}

catch (Exception ex)

{

lblBackup.Text = ex.Message;

}

finally

{

connection.Close();

}

Bind();//产生了新备份文件,更新下拉框

2 还原

SqlConnection conn = new SqlConnection(ConfigurationManager.AppSettings["Connection"]);

string dbFileName = ddlRestore.SelectedValue;

if (dbFileName == string.Empty)

{

lblRestore.Text = "没有数据库备份文件,请先备份";

return;

}

try

{

string sql2 = "Alter Database xxdl Set Offline with Rollback immediate;use master;restore database xxdl from disk=@path With Replace;Alter Database xxdl Set OnLine With rollback Immediate;";

SqlCommand command = new SqlCommand(sql2,conn);

conn.Open();

string path = Server.MapPath("~\\App_Data") + "\\" + dbFileName;

command.Parameters.AddWithValue("@path", path);

command.ExecuteNonQuery();

lblRestore.Text = "数据库还原成功";

}

catch (System.Exception ex)

{

lblRestore.Text = ex.Message;

}

finally

{

conn.Close();

Session.Abandon();

Response.Redirect("login.aspx");

}

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