一、mysql group commit 的官方定義: InnoDB, like any other ACID-compliant database engine, flushes the redo log of a transaction before it is committed. InnoDB uses group commit functionality to group multiple such flush requests together to avoid o
問題描述jdbctemplate.update,最近每次啟動項目都會拋如下異常:2018-03-29 09:01:07,831 DEBUG [ehcache] net.sf.ehcache.util.UpdateChecker.checkForUpdate(UpdateChecker.java:107) - Update check failed:java.io.IOException: Server returned HTTP response co
歡迎進入Linux社區論壇,與200萬技術人員互動交流 >>進入 1. 測試一 create table test(id int, tag int, num int); insert into test (id, tag, num) values(1, 1, 1), (2,2, 2), (3,3,3); update test set tag = 4, num=case when tag=4 then 4 el