employees.first_name, employees.last_name,when dept_manager.emp_no IS NOT NULL THEN 'Manager' ELSE'Employee' END AS Is_ManagerWHEN employees.gender = 'M' THEN 'Male' ELSE 'Female' ENDAS 'Gender'
LEF
我正在尝试将下面的SQL查询转换为C#中的LINQ/Lambda SELECT DISTINCT M.InternalID, P.Code dbo.MeasureValueMV INNER JOIN dbo.Provider P ON MV.ProviderIDM in Measures on MV.MeasureID equals M.ID
<em
我认为下面的案例说明是正确的(如响应中所示)。我在用SQL Server 2012。备注:请记住,尽管OrderID是一个PK,但如果未满足JOIN条件,它将始终为null,以及外部join中的orders表的所有其他列。SELECT c.customerID, o.OrderID, CASE When o.OrderID is NULL Then 0 Else 1 End as YesNOLEFT JOIN Orde
Doe的任何人都知道如何在LINQ to NHIBERNATE中连接多个条件?带有一个条件的Join看起来像这样: join c in child on p.id equals c.parent_idselect pSelect *left join Child t2
on t1.id = t2.parent_