文档解释ORA-19619:cannotcallRESTOREVALIDATEafterfileshavebeennamedCause:RESTOREVALIDATEwascalledaftersomefileshadalreadybeenspecifiedforrestoration.Action:Youmustca...

文档解释ORA-19618:cannotnamefilesafterRESTOREVALIDATEhasbeencalledCause:Acallwasmadetospecifyafiletorestorefromabackupset,butapreviouscalltoRESTOREVALIDATEhasalread...

文档解释ORA-32348:revalidatesummaryobjectbasedonuserinputCause:Aneventwassettospecifythenumberofattemptsthatthesystemneededtomakeinordertovalidateaninvalidatedsumma...

稍微了解HTTP协议的前端同学，相比对Cache-Control不会感到陌生，性能优化时经常都会跟它打交道。常见的值有有private、public、no-store、no-cache、must-revalidate、max-age等。各个取值所代表的含义，网上总结挺多的，这里就不打算再进行逐一介绍，感兴趣的可以一起探...