이 글은 주로 MySql 배치 삽입 최적화 SQL 실행 효율성 예시 관련 정보를 소개합니다. 필요한 친구는
MySql 배치 삽입 최적화 SQL 실행 효율성 예시 상세 설명을 참고하세요. 🎜>
itemcontractprice의 개수는 약 10,000개이며, 각 itemcontractprice에는 5개의 로그가 삽입됩니다.
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.ReservedPrice = f.ReservedPrice * {0},p.CollectedPrice = f.CollectedPrice * {0},p.AccessPrice = f.AccessPrice * {0} WHERE p.CurrencyId = {1} AND p.date BETWEEN '{2:yyyy-MM-dd}' AND '{3:yyyy-MM-dd}';", rate.ExchangeRate, exchangeRate.CurrencyId, rate.BeginDate, rate.EndDate); updateInsertSql.AppendFormat("INSERT INTO `itemcontractpricelog`(`ContractPriceType`,`ContractPrice`,`FcContractPrice`,`IsExpire`,`LogRemark`,`CreatedByName`,`CreatedById`,`CreatedDate`,`LogTypeId`,`ProviderId`,`StageId`,`Date`,`CurrencyId`,`ContractPriceId`,`StockPattern`,`ItemId`) SELECT 0,c.RemainPrice,f.RemainPrice,c.RemainIsExpire,'外币汇率调整,重新计算人民币底价','job',0,NOW(),5,c.ProviderId,c.StageId,c.Date,c.CurrencyId,c.ContractPriceId,0,c.ItemId FROM itemcontractprice AS c INNER JOIN foreigncurrency AS f ON c.ForeignCurrencyId = f.ContractPriceId WHERE c.CurrencyId={0} AND c.date BETWEEN '{1:yyyy-MM-dd}' AND '{2:yyyy-MM-dd}';", exchangeRate.CurrencyId, rate.BeginDate, rate.EndDate); updateInsertSql.AppendFormat(" INSERT INTO `itemcontractpricelog`(`ContractPriceType`,`ContractPrice`,`FcContractPrice`,`IsExpire`,`LogRemark`,`CreatedByName`,`CreatedById`,`CreatedDate`,`LogTypeId`,`ProviderId`,`StageId`,`Date`,`CurrencyId`,`ContractPriceId`,`StockPattern`,`ItemId`) SELECT 1,c.BuyOutPrice,f.BuyOutPrice,c.BuyOutIsExpire,'外币汇率调整,重新计算人民币底价','job',0,NOW(),5,c.ProviderId,c.StageId,c.Date,c.CurrencyId,c.ContractPriceId,0,c.ItemId FROM itemcontractprice AS c INNER JOIN foreigncurrency AS f ON c.ForeignCurrencyId = f.ContractPriceId WHERE c.CurrencyId={0} AND c.date BETWEEN '{1:yyyy-MM-dd}' AND '{2:yyyy-MM-dd}';", exchangeRate.CurrencyId, rate.BeginDate, rate.EndDate); updateInsertSql.AppendFormat("INSERT INTO `itemcontractpricelog`(`ContractPriceType`,`ContractPrice`,`FcContractPrice`,`IsExpire`,`LogRemark`,`CreatedByName`,`CreatedById`,`CreatedDate`,`LogTypeId`,`ProviderId`,`StageId`,`Date`,`CurrencyId`,`ContractPriceId`,`StockPattern`,`ItemId`) SELECT 2,c.ReservedPrice,f.ReservedPrice,c.ReservedIsExpire,'外币汇率调整,重新计算人民币底价','job',0,NOW(),5,c.ProviderId,c.StageId,c.Date,c.CurrencyId,c.ContractPriceId,0,c.ItemId FROM itemcontractprice AS c INNER JOIN foreigncurrency AS f ON c.ForeignCurrencyId = f.ContractPriceId WHERE c.CurrencyId={0} AND c.date BETWEEN '{1:yyyy-MM-dd}' AND '{2:yyyy-MM-dd}';", exchangeRate.CurrencyId, rate.BeginDate, rate.EndDate); updateInsertSql.AppendFormat("INSERT INTO `itemcontractpricelog`(`ContractPriceType`,`ContractPrice`,`FcContractPrice`,`IsExpire`,`LogRemark`,`CreatedByName`,`CreatedById`,`CreatedDate`,`LogTypeId`,`ProviderId`,`StageId`,`Date`,`CurrencyId`,`ContractPriceId`,`StockPattern`,`ItemId`) SELECT 3,c.CollectedPrice,f.CollectedPrice,c.CollectedIsExpire,'外币汇率调整,重新计算人民币底价','job',0,NOW(),5,c.ProviderId,c.StageId,c.Date,c.CurrencyId,c.ContractPriceId,0,c.ItemId FROM itemcontractprice AS c INNER JOIN foreigncurrency AS f ON c.ForeignCurrencyId = f.ContractPriceId WHERE c.CurrencyId={0} AND c.date BETWEEN '{1:yyyy-MM-dd}' AND '{2:yyyy-MM-dd}';", exchangeRate.CurrencyId, rate.BeginDate, rate.EndDate); updateInsertSql.AppendFormat("INSERT INTO `itemcontractpricelog`(`ContractPriceType`,`ContractPrice`,`FcContractPrice`,`IsExpire`,`LogRemark`,`CreatedByName`,`CreatedById`,`CreatedDate`,`LogTypeId`,`ProviderId`,`StageId`,`Date`,`CurrencyId`,`ContractPriceId`,`StockPattern`,`ItemId`) SELECT 4,c.AccessPrice,f.AccessPrice,c.AccessIsExpire,'外币汇率调整,重新计算人民币底价','job',0,NOW(),5,c.ProviderId,c.StageId,c.Date,c.CurrencyId,c.ContractPriceId,0,c.ItemId FROM itemcontractprice AS c INNER JOIN foreigncurrency AS f ON c.ForeignCurrencyId = f.ContractPriceId WHERE c.CurrencyId={0} AND c.date BETWEEN '{1:yyyy-MM-dd}' AND '{2:yyyy-MM-dd}';", exchangeRate.CurrencyId, rate.BeginDate, rate.EndDate); //var curContractPriceList = itemContractPriceList.Where(o => o.CurrencyId == exchangeRate.CurrencyId && o.Date >= rate.BeginDate && o.Date <= rate.EndDate).ToList(); logger.InfoFormat("底价更新和日志sql:{0}", updateInsertSql.ToString()); //if (curContractPriceList.Count == 0) continue; int effctRows = 0; using (var tran = UnitOfWorkManager.Begin()) { effctRows = taskRepository.ExecuteSql(updateInsertSql.ToString(), false); tran.Complete(); } logger.InfoFormat("底价更新影响行数:{0}", effctRows);
위 내용은 SQL 실행 효율성을 최적화하기 위한 MySql 배치 삽입 예제 코드의 상세 내용입니다. 자세한 내용은 PHP 중국어 웹사이트의 기타 관련 기사를 참조하세요!