sc主题的文章列表，还有sc的技术要点_第2页

PHP使用scandir()列出当前所有文件夹和各类文件

一般的CMS通过查看文件夹结构基本可以查看出来某些重要文件PHP代码以下是查看当前文件夹下<?php$files = scandir('.'); foreach ($files as $file) {&n...

开发笔记 ·2024-06-15

在浏览器中怎么打开javascript

一、如何打开和启用Javascript1.在Chrome中打开和启用JavascriptChrome浏览器默认情况下已经启用了Javascript，不需要做任何设置。如果需要手动启用或禁用Javascript，可以按照以下步骤操作：a.在Chrome浏览器的地址栏输入chrome://settings/content/...

开发笔记 ·2024-03-23

微信公众号调试jsconfig fail.Error invalid signature

调试js分享时候一直提示config:fail.Error:invalidsignature的签名错误，但是在本地计算的签名和方式完全正确。怎么去到线上就不正常了。。后来检查发现是公众号设置白名单，需要将服务器的ip也加入进去！！！...

开发笔记 ·2024-03-19

C 语言的输入输出函数 scanf() 和 printf()

scanf&printfC语言入门的第一堂课讲的就是输出 Hello,world! 字符串，使用 printf() 输出到黑框框（命令行）里。后面讲IO的时候又提到了 scanf() 从黑框框中获取输入的内容。基本的用法如下：intn;scanf("%...

开发笔记 ·2024-01-20

javascript （）、[]、{}的区别

一、{}大括号，表示定义一个对象，大部分情况下要有成对的属性和值，或是函数体在js中,[]表示的是数组对象，{}表示的是对象；vararr={}；arr[“属性名”]=属性值；vardemo={"name":"weicunbin","age&qu...

开发笔记 ·2023-09-07

ORA-32415: fast refreshable remote materialized view on a detail table with commit SCN-based materialized view log is not supported

文档解释ORA-32415:fastrefreshableremotematerializedviewonadetailtablewithcommitSCN-basedmaterializedviewlogisnotsupportedCause:Thematerializedviewcreationfailedbeca...

IT技术学习 ·2023-07-28

ORA-41666: XML schema validation failed when validating against string

文档解释ORA-41666:XMLschemavalidationfailedwhenvalidatingagainststringCause:TheuserinputhasundefinedelementorattributeaccordingtotheprovidedXMLschemadefinition.Acti...

IT技术学习 ·2023-07-28

ORA-31158: schema “string” currently being referenced

文档解释ORA-31158:schema“string”currentlybeingreferencedCause:ThespecifiedschemaURLiscurrentlybeingreferencedbythesamesession.ThiscouldhappenbecauseofPL...

IT技术学习 ·2023-07-28

ORA-30731: scope constraint not allowed on nested table column when the nested table is being created

文档解释ORA-30731:scopeconstraintnotallowedonnestedtablecolumnwhenthenestedtableisbeingcreatedCause:Anattemptwasmadetodefineascopeconstraintonanestedtablecolumnwhen...

IT技术学习 ·2023-07-28

ORA-24240: invalid database access descriptor (DAD) name

文档解释ORA-24240:invaliddatabaseaccessdescriptor(DAD)nameCause:ThespecifiedDatabaseAccessDescriptor(DAD)namewasinvalid.Action:MakesurethenameoftheDatabaseAccessDes...

IT技术学习 ·2023-07-28

ORA-26088: scalar column “string” must be specified prior to LOB columns

文档解释ORA-26088:scalarcolumn“string”mustbespecifiedpriortoLOBcolumnsCause:Allscalarcolumns(i.e.non-LOBandnon-LONGcolumns)mustbe*specifiedbytheclientof...

IT技术学习 ·2023-07-28

ORA-48407: DESCRIBE and QUERY commands need at least relation name argument

文档解释ORA-48407:DESCRIBEandQUERYcommandsneedatleastrelationnameargumentCause:ThisisnorelationnameisinputasargumentAction:Needuserstoinputatleasttherelationname这是一...

IT技术学习 ·2023-07-28

ORA-39931: XML Schema string Owner: string not fully contained in the transportable set.

文档解释ORA-39931:XMLSchemastringOwner:stringnotfullycontainedinthetransportableset.Cause:Informationalmessagetodescribeafailureduringtransportablecontainmentchecki...

IT技术学习 ·2023-07-28

ORA-42031: interim table cannot have a commit SCN-based MV log defined on it

文档解释ORA-42031:interimtablecannothaveacommitSCN-basedMVlogdefinedonitCause:AnattemptwasmadetouseaninterimtablewhichhadacommitSCN-basedmaterialzedviewlogdefinedon...

IT技术学习 ·2023-07-28

ORA-42297: cannot drop a schema synonym for a schema of a user who is currently connected

文档解释ORA-42297:cannotdropaschemasynonymforaschemaofauserwhoiscurrentlyconnectedCause:Anattemptwasmadetodropaschemasynonymforaschemaofauserwhowasloggedon.Action:M...

IT技术学习 ·2023-07-28