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left outer join linq

Posted By:      Posted Date: September 12, 2010    Points: 0   Category :ASP.Net
 
 Hi   I try to get this exsisting linq query to use a left outer join without success, can anyone show me how its supposed to be?   Dim product = (From f In db.tbl_Formats _ Join p In db.tbl_Products On f.FormatID Equals p.FormatID Where p.NodeId = iNodeID _ Select p, f.FormatName).SingleOrDefault   The FormatID is not always present and I therefore need a left outer join on the Formats table.   Best Regards


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LINQ left outer join question

  
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Left Outer Join in LINQ + Entities

  
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Left Outer Join fails to return all records

  
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Hi there

I have 2 tables related,

first = WBF_EVN_evn_event(keeps all event records),
second = WBF_EVN_ptc_participant(keeps all records related to participants)

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Dynamic LINQ Outer Join

  

Hey folks,

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Regards,
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Left Outer Join

  


select A.names,B.address,C.age from A left outer join B on A.names=B.names left outer join C on C.age=B.age

select A.names,B.address,C.age from A left outer join B on A.names=B.names left outer join C on C.names=B.names

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select A.names,B.address,C.age from A left outer join B on A.names=B.names left outer join C on A.age=B.ages

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Hi,

Im having a little trouble getting the syntax right in the following LINQ query.

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join mp in dtMP.AsEnumerable()
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t.Field<string>("Profile").ToLower().Contains(searchText.ToLower())
select m.Field<int>("MerchantId");

The problem is the highlighted line where I'm attempting to make a decision on a field that is potentially null/empty.  Anyone know how I get round this?


Thanks


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Hi All,

I have one confusion. I have been told that if I am joining the two tables using the left outer join then I cannot use columns from the right side table  in where condition, otherwise it will act as a inner join.

e.g. select tr.* from trans tr LEFT OUTER JOIN detail d on tr.hprop = d.hprop where tr.hmy between 1 and 100 and d.hprop = 2 ....(will this act as inner join as I have mentioned d.hprop =2 in where condition?)

Is it correct? anf if yes then how?

 Please Help.

Thanks!

Sachin :)


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