bybsky
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Oh，oh，shit，又输了。。。。。
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1、查找表中多余的重复记录，重复记录是根据单个字段（peopleId）来判断select * from peoplewhere peopleId in (select peopleId from people group by peopleId having count (peopleId) > 1)
2、删除表中多余的重复记录，重复记录是根据单个字段（peopleId）来判断，只留有rowid最小的记录delete from people where peopleId in (select peopleId from people group by peo ...
Closure Compiler是一个将JS下载并且能够运行更快的工具，是一个真正的JavaScript编译器，不过不是将源码编译成机器码，而是将JS编译成更好的JS，它分析你的JS，解析它，移除死代码，重写和最小化有用的代码，也检查语法 变量引用以及类型，出现问题进行警告。编译器是用Java做的，下载这个编译，然后通过命令行编译你的JS：java -jar compiler.jar --js hello.js --js_output_file hello-compiled.js非常简单，这样，可以将静态语言的语法检查功能加到Javascript中，从而克服JavaScript没有编译器检查语法 ...
- 2009-11-20 15:09
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Eclipse access restriction:Class is not accessible
"Access restriction: Class is not accessible due to restriction on required library"; may be shown while developing Java projects in Eclipse IDE. Error message is self-explanatory, some classes can not be loaded into the project since restr ...