There are several instances of outer joins in Linq to SQL, each of which depends on...DefaultIfEmpty()...
which Linq to Entity Framework does not support....Does this imply that Linq to Entity using.NET 3.5 cannot do an outer join? (I am aware that DefaultIfEmpty will be available with 4.0, but for me, it is not an option right now.)...Could someon...
I have studied every topic on how to use the Entity Framework with Linq to Entities (.NET 3.5) to create the LEFT OUTER JOIN equivalent, but I haven't been able to find a solution to the following issue....Considering the two tables shown below as objects:... public class Foo
public int FooId; // primary key
public string ...
Try using Linq for joining.
What ought I to use? Right or left joining?... APPLICANT TABLE PROFILE TABLE
1 | NULL | RAY HEAVENS | | 1 | MARK LAPID
2 | NULL | BEN TULFO | | 2 | SUPER MAN
3 | 1 ...
id, name, datejoin, deptID
...another table, which is...Marketing
id, name, deptID
...I want to add the name and deptID from the Employee table into the Marketing table if it doesn't already exist by searching for the deptID from the Employee table in Marketing.
In essence, I think it is the left outside connect....Using EF and lambda exp...
This is a sample of a multiple left join with null checking (preventing null reference exception). Thanks, Nick!...void Main()
var data = DataAccess.GetData();
var res =
from m in data.Movies
join ma in data.MovieActor on m.Id equals ma.MovieId into mma
from ma in mma.DefaultIfEmpty()
join p in data.People...
I often use more joins than in this example in a SQL Query I have to accomplish using lambda expressions....select Table2.a,
LEFT OUTER JOIN Table2
ON Table2.a = Table1.a and
Table2.b = Table1.b and
Table2.c = Table1.c
LEFT OUTER JOIN Table3
I'm attempting to translate this query from the query syntax of Linq to a method-based syntax....This is the problem:... var products = from p in context.Products
join t in context.TopSellings
on p.Id equals t.Id into g
from tps in g.DefaultIfEmpty()
orderby tps.Rating descending
Here, I'm receiving double meals....IEnumerable<DTOHotMealsPrice> lst = (from m in this.dbEntity.HOT_MEALS
join ml in this.dbEntity.HOT_MEALS_PRICE on m.MEALSID equals ml.MEALSID into mls
from mls1 in mls.DefaultIfEmpty()
select new DTOHotMealsPrice
MEALSID = m.MEALSID,
MEALSNAME = m...