#summary

ORA-30454: summary contains STDDEV without corresponding SUM & COUNT

文档解释ORA-30454:summarycontainsSTDDEVwithoutcorrespondingSUM&COUNTCause:IncrementalrefreshofsummarieswithSTDDEV(X)requiresCOUNT(X)andSUM(X)columnstobeincluded...

ORA-30453: summary contains AVG without corresponding COUNT

文档解释ORA-30453:summarycontainsAVGwithoutcorrespondingCOUNTCause:IncrementalrefreshofsummarieswithAVG(X)requiresaCOUNT(X)columntobeincludedinthesummarydefinitionA...

ORA-30455: summary contains VARIANCE without corresponding SUM & COUNT

文档解释ORA-30455:summarycontainsVARIANCEwithoutcorrespondingSUM&COUNTCause:IncrementalrefreshofsummarieswithVARIANCE(X)requiresCOUNT(X)andSUM(X)columnstobeincl...

ORA-30332: container table already in use by other summary

文档解释ORA-30332:containertablealreadyinusebyothersummaryCause:Anothersummaryisalreadyusingthistableasacontainertable.Action:Selectanothertableormaterializedviewas...

ORA-30331: summary does not exist

文档解释ORA-30331:summarydoesnotexistCause:Anon-existantsummarynamewasspecified.Action:Checkthespellingofthesummaryname.ORA-30331是一个软件异常,指出发布的汇总不存在的错误。它通常由用户尝试访问不存在...

ORA-30358: summary and materialized view are not in same schema

文档解释ORA-30358:summaryandmaterializedviewarenotinsameschemaCause:AninternalOracleerroroccured.Action:Reporttheproblemthroughyournormalsupportchannels.ORA-30358错误...

ORA-32348: revalidate summary object based on user input

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

cxgrid footer summary value by a column

varAIndex:integer;AValue:variant;beginwithcxGrid1DBTableView1.DataController.SummarydobeginAIndex:=DefaultGroupSummaryItems.IndexOfItemLink(cxGrid1DBTableView1D...

三个不常用的HTML元素:<details>、<summary>、<dialog>

  HTML5不仅新增了语义型区块级元素及表单类元素,也新增了一些其他的功能性元素,这些元素由于浏览器支持等各种原因,并没有被广泛使用   <details>主要用于描述文档或文档某个部分的细节,与<summary>配合使用可以为<details>定义标题。标题是可见的,用...

ASP.NET MVC3 Model验证总结 @Html.ValidationSummary(true)

http://www.wyjexplorer.cn/Post/2012/8/3/model-validation-in-aspnet-mvc3ASP.NETMVC3中的Model是自验证的,这是通过.NET4的System.ComponentModel.DataAnnotations命名空间完成的。我们要做的只是给Mo...

转载:@Html.ValidationSummary(true)

 http://www.wyjexplorer.cn/Post/2012/8/3/model-validation-in-aspnet-mvc3ASP.NETMVC3中的Model是自验证的,这是通过.NET4的System.ComponentModel.DataAnnotations命名空间完成的。我们要做...

Summary Day32

1.文件管理1.1标C文件处理和UC文件处理函数的比較:标C文件处理函数比UC的文件处理函数速度快。由于标C内部独立输入输出缓冲区,会积累一定数量之后再写入文件,因此读写效率比較高使用time命令能够获取进程的执行时间timeb.outreal 0m0.081s =>真实时间user ...
代码星球 ·2020-04-06

【Professional English】Words Summary

01、数据库管理系统(DatabaseManagementSystems,DBMS)Adatabasemanagementsystem(DBMS)isacomputersoftwareapplicationthatinteractswiththeuser,otherapplications,andthedatabase...