RE: row_number ignores where clause w/ order by

You put the order by in a different place that Charles showed you. Move it to the over()

-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Patrick Conner via MIDRANGE-L
Sent: Thursday, November 29, 2018 1:10 PM
To: midrange-l@xxxxxxxxxxxx
Cc: Patrick Conner
Subject: Re: row_number ignores where clause w/ order by


Charles,


I tried:


select row_number(order by data_size desc) over() as rowNumber, s.* from qSys2.sysTableStat s where regExp_like( table_schema, 'CLOCF' ) ;



...and I get the same results. First record is number 55, second is 57, etc. The 'where' is still ignored as far as numbering the rows is concerned.



Patrick



------------------------------

message: 5
date: Thu, 29 Nov 2018 09:56:36 -0700
from: Charles Wilt <charles.wilt@xxxxxxxxx>
subject: Re: row_number ignores where clause w/ order by

If you want the row_number to be generated in a specific order, you need to include the `window-order-clause`

select row_number() over (order by data_size desc) <snip>

Charles



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