Joining 2 result sets

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Joining 2 result sets

MuraliKrishnan1980

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Points: 2497
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October 20, 2011 at 4:36 am

#259017

[font="Tahoma"]Hello Friends,
I am trying to join 2 record sets. The first record set is generated by joining 2 tables and the second record set is again generated by 2 tables.
Following is the sample query used to derive the record sets
--First record set
select x.patientid,row_number() over (partition by x.patientid order by x.observationid) as rid,x.observationid,y.code from
xxx x
Inner Join yyy y on x.observationid = y.observationid
where y.code like 'glucose' and o.patientid = 327
--second record set
select x.patientid,row_number() over (partition by x.patientid order by x.observationid) as rid,x.observationid,y.code from
xxx x
Inner Join yyy y on x.observationid = y.observationid
where y.code like 'alt' and o.patientid = 327
Now i would like do a full outer join of these record sets using the patientid and the rid fields. Can somebody help me out in writing the query for joining these 2 record sets.
Thanks & regards,
Murali[/font]

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John Mitchell-245523 SSC Guru Points: 148809 More actions · Answer 1

Murali

What column(s) do you want to match the two result sets on?

John

ChrisM@Work SSC Guru Points: 186127 More actions · Answer 2

;WITH First_record_set as (

select x.patientid,row_number() over (partition by x.patientid order by x.observationid) as rid,x.observationid,y.code

from xxx x

Inner Join yyy y on x.observationid = y.observationid

where y.code like 'glucose' and o.patientid = 327

),

second_record_set as (

select x.patientid,row_number() over (partition by x.patientid order by x.observationid) as rid,x.observationid,y.code

from xxx x

Inner Join yyy y on x.observationid = y.observationid

where y.code like 'alt' and o.patientid = 327

)

SELECT f.*, s.*

FROM First_record_set f

FULL OUTER JOIN second_record_set s

ON s.patientid = f.patientid AND s.rid = f.rid

^{“Write the query the simplest way. If through testing it becomes clear that the performance is inadequate, consider alternative query forms.” - Gail Shaw}

For fast, accurate and documented assistance in answering your questions, please read this article.
Understanding and using APPLY, (I) and (II) Paul White
Hidden RBAR: Triangular Joins / The "Numbers" or "Tally" Table: What it is and how it replaces a loop Jeff Moden

MuraliKrishnan1980 SSCrazy Points: 2497 More actions · Answer 3

[font="Tahoma"]

Hello John,

I would like to join these record sets using the patientid and the rid columns.

[/font]

MuraliKrishnan1980 SSCrazy Points: 2497 More actions · Answer 4

Hey Chris.. That worked the way that i was looking for.. Thanks for your help and Thanks John for ur response.