Question

Hi,

If I run the in my database :

SELECT *
FROM 
    Ads AS a 
INNER JOIN AdCategories AS ac 
    on (ac.Id = a.CategoryId) 
INNER JOIN Location AS l 
    on (l.Id = a.UserLocationId) 
WHERE 
    (l.LevelOrder LIKE '2/3/5/%') AND 
    (a.Title LIKE '%' OR a.Description LIKE '%') AND 
    a.InactivatedDate IS NULL AND 
    a.PublishedDate IS NOT NULL AND 
    a.EndDate >= '2012-02-04 17:01:37' AND 
    a.EndDate >= '2011-11-04 16:55:26' AND 
    ac.LevelOrder Like '7/15/33/36_%'

This will return 2 rows but when running the same command with Entity Framework

context.CreateQuery<Ad>(sqlCommand, parameters.ToArray()); 
output = ads.ToList(); 

I get nothing?

This is how the SQL statement looks like :

SELECT VALUE a 
FROM 
    Ads AS a 
INNER JOIN AdCategories AS ac 
    on (ac.Id = a.CategoryId) 
INNER JOIN Location AS l 
    on (l.Id = a.UserLocationId) 
WHERE 
    (l.LevelOrder LIKE @locationLevelOrder0) AND 
    (a.Title LIKE @searchS OR a.Description LIKE @searchS) AND 
    a.InactivatedDate IS NULL AND 
    a.PublishedDate IS NOT NULL AND 
    a.EndDate >= @CurrentTime AND 
    a.EndDate >= @fetchAdsTo AND 
    ac.LevelOrder Like @categoryLevelOrder

The parameters looks like this :

1. LocationLevelOrder0 = 2/3/5/%
2. searchS = %
3. CurrentTime = {2012-02-04 17:31:34}
4. fetchAdsTo = {2011-11-04 17:31:34}
5. categoryLevelOrder = 7/15/33/36/_%

Why do I not get any results with the Entity Framework while I do in SQL manager? And what does the select value a stand for? If I remove it there will be thrown an exception?

Answer 1

In first your query you compare LevelOrder with '7/15/33/36_%' and in the second one with 7/15/33/36/_% that is a different string. Is this a transcription mistake or is the issue?