如题,同一句sql在php里执行没有结果,在navicat里查询有结果。
<code>SELECT TOP 25 SHANGPIN.SPDM, SHANGPIN.SPMC, GUIGE1.GGMC AS YS, SUM (VW_SDLSMX.SL) AS SL, FJSX3.SXMC AS SHEJI, FJSX4.SXMC AS DABAN FROM SHANGPIN, GUIGE1, GUIGE2, VW_SDLSMX, FJSX3, FJSX4 WHERE VW_SDLSMX.SPDM = SHANGPIN.SPDM AND VW_SDLSMX.GG1DM = GUIGE1.GGDM AND VW_SDLSMX.GG2DM = GUIGE2.GGDM AND VW_SDLSMX.DM1 != '900' AND VW_SDLSMX.DM1 != '901' AND SHANGPIN.FJSX3 = FJSX3.SXDM AND SHANGPIN.FJSX4 = FJSX4.SXDM AND VW_SDLSMX.SPDM IN ( SELECT SPDM FROM SHANGPIN WHERE BYZD4 = '000' AND BYZD5 = 'eg' ) GROUP BY SHANGPIN.SPDM, SHANGPIN.SPMC, GUIGE1.GGMC, FJSX3.SXMC, FJSX4.SXMC ORDER BY SUM (SL) DESC</code>
回复内容:
如题,同一句sql在php里执行没有结果,在navicat里查询有结果。
<code>SELECT TOP 25 SHANGPIN.SPDM, SHANGPIN.SPMC, GUIGE1.GGMC AS YS, SUM (VW_SDLSMX.SL) AS SL, FJSX3.SXMC AS SHEJI, FJSX4.SXMC AS DABAN FROM SHANGPIN, GUIGE1, GUIGE2, VW_SDLSMX, FJSX3, FJSX4 WHERE VW_SDLSMX.SPDM = SHANGPIN.SPDM AND VW_SDLSMX.GG1DM = GUIGE1.GGDM AND VW_SDLSMX.GG2DM = GUIGE2.GGDM AND VW_SDLSMX.DM1 != '900' AND VW_SDLSMX.DM1 != '901' AND SHANGPIN.FJSX3 = FJSX3.SXDM AND SHANGPIN.FJSX4 = FJSX4.SXDM AND VW_SDLSMX.SPDM IN ( SELECT SPDM FROM SHANGPIN WHERE BYZD4 = '000' AND BYZD5 = 'eg' ) GROUP BY SHANGPIN.SPDM, SHANGPIN.SPMC, GUIGE1.GGMC, FJSX3.SXMC, FJSX4.SXMC ORDER BY SUM (SL) DESC</code>
是不是没有 commit
打印出你的sql语句看下,可能传值的时候要加引号。如:变量='$...';
之前也遇到同样的情况,当时把语句复制到window s的记事本,再复制粘贴回回去,居然就好了。

APHPDependencyInjectionContainerisatoolthatmanagesclassdependencies,enhancingcodemodularity,testability,andmaintainability.Itactsasacentralhubforcreatingandinjectingdependencies,thusreducingtightcouplingandeasingunittesting.

Select DependencyInjection (DI) for large applications, ServiceLocator is suitable for small projects or prototypes. 1) DI improves the testability and modularity of the code through constructor injection. 2) ServiceLocator obtains services through center registration, which is convenient but may lead to an increase in code coupling.

PHPapplicationscanbeoptimizedforspeedandefficiencyby:1)enablingopcacheinphp.ini,2)usingpreparedstatementswithPDOfordatabasequeries,3)replacingloopswitharray_filterandarray_mapfordataprocessing,4)configuringNginxasareverseproxy,5)implementingcachingwi

PHPemailvalidationinvolvesthreesteps:1)Formatvalidationusingregularexpressionstochecktheemailformat;2)DNSvalidationtoensurethedomainhasavalidMXrecord;3)SMTPvalidation,themostthoroughmethod,whichchecksifthemailboxexistsbyconnectingtotheSMTPserver.Impl

TomakePHPapplicationsfaster,followthesesteps:1)UseOpcodeCachinglikeOPcachetostoreprecompiledscriptbytecode.2)MinimizeDatabaseQueriesbyusingquerycachingandefficientindexing.3)LeveragePHP7 Featuresforbettercodeefficiency.4)ImplementCachingStrategiessuc

ToimprovePHPapplicationspeed,followthesesteps:1)EnableopcodecachingwithAPCutoreducescriptexecutiontime.2)ImplementdatabasequerycachingusingPDOtominimizedatabasehits.3)UseHTTP/2tomultiplexrequestsandreduceconnectionoverhead.4)Limitsessionusagebyclosin

Dependency injection (DI) significantly improves the testability of PHP code by explicitly transitive dependencies. 1) DI decoupling classes and specific implementations make testing and maintenance more flexible. 2) Among the three types, the constructor injects explicit expression dependencies to keep the state consistent. 3) Use DI containers to manage complex dependencies to improve code quality and development efficiency.

DatabasequeryoptimizationinPHPinvolvesseveralstrategiestoenhanceperformance.1)Selectonlynecessarycolumnstoreducedatatransfer.2)Useindexingtospeedupdataretrieval.3)Implementquerycachingtostoreresultsoffrequentqueries.4)Utilizepreparedstatementsforeffi


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Dreamweaver CS6
Visual web development tools

WebStorm Mac version
Useful JavaScript development tools

PhpStorm Mac version
The latest (2018.2.1) professional PHP integrated development tool

mPDF
mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),
