#食品sc认证

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/...

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!!!...

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("%...

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 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...

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

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

ORA-31158: schema “string” currently being referenced

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

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...

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

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

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...

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

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

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

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

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...

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...

ORA-22896: cannot have both scope and referential constraint on REF column “string”

文档解释ORA-22896:cannothavebothscopeandreferentialconstraintonREFcolumn“string”Cause:REFcolumnhasbothareferentialandascopeconstraint.Areferentialconstr...
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