叛将by水虹扉

  • group by order by
  • group by + order by
  • hive order by,sort by,distributed by
  • Caused by: java.sql.SQLException: 无法将 NULL 值插入列 'lineid',表 'kangaroo.dbo.kangaroo_roadnet_line';该列不允许空值。INSERT 失败。
  • 使用m2e将工程转化为maven工程后eclipse报Plugin execution not covered by lifecycle configuration:xxx plugin问题的解决方法
  • MyBatis排序时使用order by 动态参数时需要注意,用$而不是# 用$传参时,直接将参数的值放在sql语句中,如:
  • Android Studio生成自定义jar包(同时将assets目录打入jar包)(一)(by 星空武哥)
  • AndroidStudio生成自定义的混淆jar包(同时将assets目录打入jar包)(二)(by 星空武哥)
  • Android Studio生成自定义jar包(同时将assets目录打入jar包)(一)(by 星空武哥)
  • AndroidStudio生成自定义的混淆jar包(同时将assets目录打入jar包)(二)(by 星空武哥)
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