Linq實現左連接、右連接
--一本錯誤的記錄 insert into Book values('錯誤時怎樣練成的',111) --左連接 select s.name,b.name from student as s left join Book as b on s.id ...
原文：linq實現左連接
左連接： var LeftJoin from emp in ListOfEmployees join dept in ListOfDepartment on emp.DeptID equals dept.ID into JoinedEmpDept from dept in JoinedEmpDept.DefaultIfEmpty select new EmployeeName emp.Name, ...
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