#Paris

ORA-13793: invalid comparison metric

文档解释ORA-13793:invalidcomparisonmetricCause:AninvalidmetrictocompareSQLperformancewasspecified.Action:s.Ora-13793是Oracle数据库中一个常见的错误,它表明您正在使用一个无效的比较指标。比较指标是识别哪种操作...

ORA-23629: string.string is not an eligible index on table string.string for comparison

文档解释ORA-23629:string.stringisnotaneligibleindexontablestring.stringforcomparisonCause:Thespecifiedindexwasnotaneligibleindextouseforcomparison.Action:Foratablet...

ORA-23623: internal DBMS_COMPARISON error: [string] [string] [string] [string]

文档解释ORA-23623:internalDBMS_COMPARISONerror:[string][string][string][string]Cause:DBMS_COMPARISONdetectedanerroneousresult.Action:Lookforinformationinthesessiont...

ORA-23624: A comparison operation is currently in progress for string.

文档解释ORA-23624:Acomparisonoperationiscurrentlyinprogressforstring.Cause:Anothersessionwasalreadyperforminganoperationonthisobject.Action:Retrytheoperationonceoth...

ORA-23628: Comparison query too long (actual string, allowed string).

文档解释ORA-23628:Comparisonquerytoolong(actualstring,allowedstring).Cause:Ageneratedqueryforcomparisonwastoolong.Action:Comparisonisunsupportedforverylargetableswi...

ORA-09798: Label comparison failed.

文档解释ORA-09798:Labelcomparisonfailed.Cause:Thecomparisonoftwobinarylabelsfailed.Action:ChecktheUNIXerrornumberforapossibleoperatingsystemfailure.Ifthereisnoerror...

ORA-23627: Comparison object string already existed.

文档解释ORA-23627:Comparisonobjectstringalreadyexisted.Cause:Acomparisonobjectbythespecifiednamealreadyexists.Action:Retrywithadifferentname.ORA-23627错误是由comparison...

MySQL Error number: 3986; Symbol: ER_IMPLICIT_COMPARISON_FOR_JSON; SQLSTATE: HY000

文档解释Errornumber:3986;Symbol:ER_IMPLICIT_COMPARISON_FOR_JSON;SQLSTATE:HY000Message:EvaluatingaJSONvalueinSQLbooleancontextdoesanimplicitcomparisonagainstJSONinte...
IT技术学习 ·2023-07-03

[翻译]比较ADO.NET中的不同数据访问技术(Performance Comparison:Data Access Techniques)

PriyaDhawanMicrosoftDeveloperNetworkJanuary2002原文链接:https://msdn.microsoft.com/en-us/library/ms978388.aspx 概要:在典型的应用环境中,比较不同数据访问技术的表现性能。适用于Microsoft.NETFra...

C++ code:浮点数的比较(Floating-Pointing Number Comparison)

浮点数可以进行比较,但是浮点数由于表示精度在不同浮点数类型中的差异,所以会被误用。例如:1#include<iostream>2usingnamespacestd;34intmain()5{6floatf1=7.123456789;7floatf2=7.132456875;8cout<<(f1!...

命令行工具比较 cmd tools comparison

6oftheBestTerminalEmulatorsforWindows10  WhatarethebestterminalemulatorsforWindows?...

Paris Traceroute

ParisTracerouteisanewversionofthewell-knownnetworkdiagnosisandmeasurementtool.WhyshouldyouuseParistraceroute?Becausetraceroutefailsinthepresenceofroutersthatemp...
代码星球 ·2020-11-25

Mybatis:java.lang.IllegalArgumentException: invalid comparison: java.util.Date and java.lang.String

  原因:对于时间参数进行比较时的一个bug.如果拿传入的时间类型参数与空字符串''进行对比判断则会引发异常。 错误写法:  <iftest="updated!=nullandupdated!=''">正确写发:  <inftest="updated!=null">...

Velocity中的ComparisonDateTool、MathTool、NumberT...

Velocity中的ComparisonDateTool、MathTool、NumberTool、SortTool、EscapeTool工具可以从Apache官方网站自带的例子中查找,位置velocity-tools-1.4-srcexamplesshowcase。Apache官方网站自带的例子有下面一些:Altern...

两个字符串对比提升比较性能用 StringComparison.OrdinalIgnoreCase

如果用string.ToLower()或者string.ToUpper()字符串在进行大小写转换时会消耗额外的性能用这个比较性能更好StringPwd1.Equals(Md5(PassWord2),StringComparison.OrdinalIgnoreCase)  OrdinalIgnoreC...
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