Question

I have a query that I need to execute against CRM. It is the equivalent of the following in SQL:

SELECT A.*, B.* FROM Table1 A INNER JOIN Table2 B ON A.ID = B.ID 

I created a query and added a linkentity as follows:

link.JoinOperator = JoinOperator.Inner; link.LinkFromEntityName = EntityName.new_Table1.ToString(); link.LinkFromAttributeName = 'new_Table1ID'; link.LinkToEntityName = EntityName.new_Table2.ToString(); link.LinkToAttributeName = 'new_Table2ID'; query.LinkEntities = new LinkEntity[] { link }; 

However, it only returns the columns from new_Table1.

Is there a way to link in this fashion and return the columnns from both entities without having to create two queries?

Answer 1

QueryExpression doesn’t support this. You’ll need to use Fetch XML.

From ‘Using FetchXML’ in the SDK – you’ll end up with something like this:

<fetch mapping='logical'>       <entity name='account'> <attribute name='accountid'/> <attribute name='name'/> <link-entity name='systemuser' to='owninguser'>    <filter type='and'>       <condition attribute='lastname' operator='ne' value='Cannon' />    </filter>    <attribute name='name' /> </link-entity>       </entity>    </fetch> 

If you haven’t used FetchXML yet, I highly recommend http://www.stunnware.com/?area=products&group=swtools4 for building and testing FetchXML. That way you can get a preview of your Result XML.