sql server 2008 - How to update data faster in sql using c# -


i want update database think code takes lot of time in doing it. takes 20secs or more in updating. possible make faster? if please me.

this code:

for (int = 0; < listview1.items.count; i++)         {             if (listview1.items[i].subitems[13].text.tostring() == ("active") || listview1.items[i].subitems[13].text.tostring() == ("active"))             {                 (int x = 0; x < listview1.items[i].subitems.count; x++)                 {                 string = listview1.items[i].subitems[7].text;                 timespan time = convert.todatetime(datetime.now.tostring("mmmm dd, yyyy")) - convert.todatetime(a.tostring());                 int days = (int)time.totaldays;                 listview1.items[i].subitems[11].text = days.tostring() + " day(s)";                 class1.connecttodb();                 class1.sqlstatement = "update tblhd set aging = '" + days.tostring() + " day(s)" + "'";                 class1.dbcommand = new sqlcommand(class1.sqlstatement, class1.dbconnection);                 class1.dbcommand.executereader();                 }             }             }

it seems single update statement:

update tblhd set aging=datediff(day, datefield, getdate())+" day(s)" itemid=...

but it's not idea store user-friendly labels 'day(s)' in database.


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