MySql批量插入优化Sql执行效率实例详解
itemcontractprice数量1万左右，每条itemcontractprice 插入5条日志。
updateInsertSql.AppendFormat(UPDATE itemcontractprice AS p INNER JOIN foreigncurrency AS f ON p.ForeignCurrencyId = f.ContractPriceId SET p.RemainPrice = f.RemainPrice * {0},p.BuyOutPrice = f.BuyOutPrice * {0},p.ReservedPri
