RANK ISSUE

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RANK ISSUE

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Snargables

Posted Thursday, March 07, 2013 12:57 PM

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NOTICE THE DESIRED OUTPUT ON THE BOTTOM.

SELECT 'table1' TABLENAME
,'col1' COLNAME
INTO #temp
UNION ALL
SELECT 'table1'
,'col2'
UNION ALL
SELECT 'table1'
,'col3'
UNION ALL
SELECT 'table2'
,'col1'
UNION ALL
SELECT 'table2'
,'col2'
UNION ALL
SELECT 'table3'
,'col1'

SELECT *
FROM #temp

--DESIRED OUTPUT ID COL:

--ID TABLENAME COLNAME
--1 table1 col1
--2 table1 col2
--3 table1 col3
--1 table2 col1
--2 table2 col2
--1 table3 col1

Post #1428215

Lynn Pettis

Posted Thursday, March 07, 2013 1:01 PM

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Snargables (3/7/2013)

Okay, so what is the problem?

Cool

Lynn Pettis

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Post #1428219

Snargables

Posted Thursday, March 07, 2013 1:06 PM

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I need to generate the id col values. I don’t know how to make a rank or rownumber reset.

notice it goes back to one. When it gets to a new table. I 've been playing w dense rank but don’t see one where it goes back to 1.

am I making any sense? for some reason i'm having a really hard time explaining it

Post #1428224

Snargables

Posted Thursday, March 07, 2013 1:08 PM

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run the insert and select. Notice there is no id col being retruned. It's in the desired output. i need to find a way to generate that id patter in my select

Post #1428227

Lynn Pettis

Posted Thursday, March 07, 2013 1:13 PM

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select
    ID = row_number() over (partition by TABLENAME order by COLNAME),
    TABLENAME,
    COLNAME
from
    #temp;

Lynn Pettis

SQL Musings from the Desert Fountain Valley SQL (My Mirror Blog)

Post #1428236

Snargables

Posted Thursday, March 07, 2013 1:18 PM

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ah. row number w partition. nice. i was about to cross apply it to itself to get the darn id to reset. thanks

Post #1428239

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