跨库备份指定日期前数据表,然后从原表删除

时间：2014-06-07 09:46:26 收藏：0 阅读：150

        public bool BackupAA()

            int temp = 0;

            int tempdel = 0;

            string sql = "INSERT INTO  [WMSBAK].[dbo].[AACopy] SELECT * FROM  [TestDB].[dbo].[AA] WHERE AddDate <= DATEADD( d ,-45,GETDATE())";

try

                temp = dbhelper.ExcuteNonequery(sql);

            catch (Exception)

            if (temp > 0)

                string delsql = "DELETE [TestDB].[dbo].[AA] WHERE AddDate < DATEADD( d ,-45,GETDATE())";

try

                    tempdel = dbhelper.ExcuteNonequery(delsql);

                catch (Exception)

                    throw;

                if (tempdel > 0)

                    return true;

                else

                    return false;

            else

                return false;