How Intersect and Except result in SSIS

问题

Have Two result Set A and B, In SSIS Merge Join how get EXCEPT and INTERSECT of A result set.

Bellow sql syntax return desired out put:

---Insersect
select a.* from A a Inner join B b on a.Key=b.Key 

--Except
select a.* from A a left join B b on a.Key=b.Key where b.Key is null

How to get those query result from SSIS merge join

回答1:

According to his Microsoft Artcile, "The Merge Join transformation provides an output that is generated by joining two sorted datasets using a FULL, LEFT, or INNER join"

In the Merge Join Transformation editor, you can select the Join Type property to do that:

Except:

select a.* from A a left join B b on a.Key=b.Key where b.Key is null

You have to set Join Type = Left Outer Join, and after the Merge Join Transformation you have to add a conditional split to filter rows that has b.Key is null

Follow this detailed article for that: Get all from Table A that isn't in Table B

Intersect