Group by and partioned by

Hi
Can any one explain difference between group by and partioned by
Regards,

Hi,
Group functions operate on sets of rows to give one result per group.
group by functions:
AVG
COUNT
MAX
MIN
STDDEV
SUM
VARIANCE
each group defined with GROUP BY clause in a SELECT statement is called
a partition. A query result set may have just one partition holding all the rows, a few large
partitions, or many small partitions holding just a few rows each.
In such cases analytical functions are used for each row in each parition
regards
nic

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I need to show grouped id and only the max order value for each unique id

select distinct
Table1.id,
Table1.id +' - '+ Table1.VisitNumber +' : '+ Table1.Priority as UidVisitKey,
Table1.VisitNumber,
DATEDIFF(d, [dob],[Visite_dte])/365.25 as Age_On_Visit,
Table1.Priority,
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Table1.OrderOfVisit + ' - ' + Table1.Notes AS VisitNote,
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into #Temp1
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select #Temp1.id, max(#Temp1.[OrderOfVisit]), #Temp1.VisitNote
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---I need to show grouped id and only the max OrderOfVisit for each unique id, and the VisitNote for each OrderOfVisit
----------------need help-------------

Sounds like this
select distinct
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Table1.Visitor_SName,
Table2.dob,
Table2.sex,
Table1.Visit_dte,
into #Temp1
FROM Table1 INNER JOIN
Table2 ON Table1.id = Table2.id
WHERE Table1.LeaveDate IS NOT NULL
and Table1.LeaveDate between DATEADD(mm,-1,DATEADD(mm,DATEDIFF(mm,0,GETDATE()),0))
and DATEADD(ms,-3,DATEADD(mm,0,DATEADD(mm,DATEDIFF(mm,0,GETDATE()),0)))
select id,OrderOfVisit,VisitNote
from
select #Temp1.id, #Temp1.[OrderOfVisit], #Temp1.VisitNote,ROW_NUMBER() OVER (PARTITION BY #Temp1.id ORDER BY #Temp1.[OrderOfVisit] DESC) AS Seq
from #Temp1
)t
WHERE Seq = 1
ORDER BY id
drop table #Temp1
Please Mark This As Answer if it helps to solve the issue Visakh ---------------------------- http://visakhm.blogspot.com/ https://www.facebook.com/VmBlogs

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>
Please update your forum profile with a real handle instead of "user13653962".
how can i group above and left in an existing classic reports? What does "group above and left" mean? A demonstration layout on apex.oracle.com or here (using tags<tt>\...\</tt> tags to preserve formatting) would be helpful.
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<li>Full DB/version/edition/host OS
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left.
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hello,
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single report.
you might want to use the INSERT REPORT BLOCK instead of the
report wizard, as the report wizard only allows you to use one
report layout per report, where the report block wizard (invoked
by INSERT REPORT BLOCK) allows you to choose on a per-block
basis.
of course you can create the blocks completely from scarth by
hand, if you want to.
regards,
the oracle reports team --pw

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Hi DazFaz,
true, but with an array with length of 1 rounding down
prevents an index
out of range error.
In you original code you 'round down' by multiplying by the
length of
the array -1 while I round down with Math.floor (and multiply
by the
actual length of the array).
Is there a difference in result?
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I love puzzels :)
DazFaz wrote:
> Hi Manno Bult.
>
> The problem with user Math.floor is that it only moves
in one direction and
> that is down to an integer.
> With Math.round ir rounds off the number to the nearest
integer.
>
> If you run the code I have modified from yours, you will
see what I mean. You
> will notice that rndV1 always stays at 0 yet rndV2 will
deviate from 0 to 1.
> Making it a more accurate way of finding a true random
number.
>
> var rnd:Number = Math.random();
> var rndV1 = Math.floor(rnd);// Rounds ONLY down to the
nearest integer
> var rndV2 = Math.round(rnd);// rounds up OR down to the
nearest integer
>
> trace(rnd + "\t" + rndV1 + "\t" + rndV2);
>
Manno Bult
[email protected]

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I think this is a simple question and feel that I should already know the answer but for some reason it eludes me. What I would like to know is the proper way to hide/display group headings and have them show up on drill down BUT not repeat on each group header.
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