sql server - Convert right outer join to Linq query in EF -

-

i want convert below sql query linq query confused:

select * dbo.vahed inner join dbo.vahedmahsol on dbo.vahed.vahedid = dbo.vahedmahsol.vahedid right outer join dbo.mahsol on dbo.vahedmahsol.mahsolid = dbo.mahsol.mahsolid

i wrote code:

vaheds = (   in db.spgetvahedbywhatwhere(what, wherestr, int.parse(whattype), new guid(shahrid))   join gr in db.gorohsenfis on i.gorohsenfiid equals gr.gorohsenfiid   join ct in db.contacts on i.vahedid equals ct.vahedid   join vm in db.vahedmahsols on i.vahedid equals vm.vahedid   select ) .tolist();

but don't know how convert

right outer join dbo.mahsol on dbo.vahedmahsol.mahsolid = dbo.mahsol.mahsolid

to linq query.

first of can rewrite sql query use left outer join instead of right outer join (because easier convert linq):

select * dbo.mahsol left outer join dbo.vahedmahsol on dbo.mahsol.mahsolid = dbo.vahedmahsol.mahsolid inner join dbo.vahed on dbo.vahedmahsol.vahedid = dbo.vahed.vahedid

now can convert query above in linq this:

vaheds = (   m in db.mahsols   join vm1 in db.vahedmahsols on m.mahsolid equals v.mahsolid vmgroup   vm in vmgroup.defaultifempty()   join in db.spgetvahedbywhatwhere(what, wherestr, int.parse(whattype), new guid(shahrid))     on vm.vahedid equals i.vahedid   join gr in db.gorohsenfis on i.gorohsenfiid equals gr.gorohsenfiid   join ct in db.contacts on i.vahedid equals ct.vahedid   select ).tolist();

i have no way of testing this, hope works.


Comments

Post a Comment

Popular posts from this blog

django - How can I change user group without delete record -

-
on website user have 1 group. , user can change group. it's made user.groups.clear() and user.groups.add(new_group) but it's not efficient, because there 2 sql query: delete, insert. how can change group update query? user , group related each other using manytomanyfield . means intersection table exists relating both entities, , if don't specify model map (using through attribute) django creates 1 you. looking @ sources django.contrib.auth.models see that's case. fortunatly, can access intermediary model using through attribute of manager (in case, user.groups.through ). can use regular model. example: >>> alice = user.objects.create_user('alice', 'alice@example.com', 'alicepw') >>> employee = group.objects.create(name='employee') >>> manager = group.objects.create(name='manager') >>> alice.groups.add(employee) >>> alice.groups.all() [<group: employee...
Read more

java - Need to add SOAP security token -

-
i need set custom soap header attribute on jax-ws generated webservice client. case webservice calls must go through proxy server requiring specific token (recieved web request header) present in soap request header. e.g.: 1 carserviceservice service = null; 2 service = new carserviceservice(new url(url), new qname(qname); 3 carserviceendpoint port = service.getcarserviceport(); it seems in line 3 wsdl retrieved , call fails due missing security token. 1 point direction on how done? a detailed example has been mentioned here: creating , deploying jax-ws web service on tomcat 6 this article shows how create , use security token .
Read more

java - EclipseLink JPA Object is not a known entity type -

-
i have strange problem eclipselink , object want persist. have 1 object (keypointlistimpl) stores object keypointimpl in list. persisting keypointimpl objects works great if try persist keypointlistimpl object java.lang.illegalargumentexception says object keypointimpl isn't known entity type. here keypointimpl code: @entity @table(name="keypoints") public class keypointimpl implements keypoint { @id @generatedvalue(strategy = generationtype.identity) private int id; @enumerated(enumtype.string) private detectortype keypointtype; private float x; private float y; private float size; private float angle; private float response; private int octave; private int classid; ... } here keypointlistimpl code: @entity @table(name="keypointlists") public class keypointlistimpl implements keypointlist { @id @generatedvalue(strategy = generationtype.identity) private int id; @onetoone(cascade={ca...
Read more