select * from emp as ainner join emp_role as b on a.empID=b.empID inner join fun_role as c on b.roleID=c.roleID inner join menu_subbar as d on c.menu_subbar_id=d.menu_subbar_id where d.menu_subbar_include='"+bar_id+"' and a.empID='"+empID+"'
怎么让重复的c.menu_subbar_id的值不重复?group by??应该写在哪个位置?
怎么让重复的c.menu_subbar_id的值不重复?group by??应该写在哪个位置?
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