表A中有一个属性,它指示它将得到哪个表。
例如:
表A(资讯科技)
InfoID | Type
表B(学生)
StudentID | Name | Course |
表C(雇员)
EmployeeID | Name | Company |
如果输入=1,则在表B(学生)中获取信息
InfoID | StudentID | Name | Course
在表C中获取其他信息(员工)
InfoID | EmployeeID| Name | Company
为什么~/.sbt/0.13/plugins/build.sbt中定义的插件不包括在sbt tasks -V列表中?
jacek:~/oss/scalania
$ sbt about
[info] Loading global plugins from /Users/jacek/.sbt/0.13/plugins
[info] Loading project definition from /Users/jacek/oss/scalania/project
[info] Set current project to scalania (in build file:/Users/jacek/os