Re: UDTF (or similar) to retrieve data from SYSPARTITIONSTAT

Unlike RPG, which is self documenting.

ROTFL


Rob Berendt
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From: Jon Paris <jon.paris@xxxxxxxxxxxxxx>
To: Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxx>,
Date: 09/27/2013 11:15 AM
Subject: Re: UDTF (or similar) to retrieve data from
SYSPARTITIONSTAT
Sent by: midrange-l-bounces@xxxxxxxxxxxx



That's what I love about SQL - the code is so obvious, intuitive, and easy
to modify <running and ducking>


On 2013-09-27, at 9:47 AM, Robert Clay <zreclay@xxxxxxxxx> wrote:

Finally got it to work with the addition of scalar function TRIM().

Here is the working code ("working", but probably not final):

DROP FUNCTION QGPL.LIBSTATS ;

CREATE FUNCTION QGPL.LIBSTATS ( Schema_Name VARCHAR(10) )
RETURNS TABLE (
Lib_Schema CHAR(10)
, Table_Name CHAR(10)
, Mbr_Name CHAR(10)
, Owner CHAR(10)
, Text CHAR(50)
, Days_Used INTEGER
, Nbr_Rows BIGINT
, Del_Rows BIGINT
, Del_Percnt DECIMAL( 5 , 2 )
, Data_Size BIGINT
, Last_Used CHAR(10)
, Created CHAR(10)
, Last_Chgd CHAR(10)
, Last_Saved CHAR(10)
, Last_Rstrd CHAR(10)
)

LANGUAGE SQL
NOT DETERMINISTIC
NOT FENCED
NO EXTERNAL ACTION
DISALLOW PARALLEL
CARDINALITY 100

BEGIN

RETURN
(
SELECT
A.Lib_Name
, A.Table_Name
, A.Member_Name
, T.Owner
, T.Desc
, A.Days_Used
, A.Number_Rows
, A.Deleted_Rows
, A.PercntDltd
, A.Data_Size
, A.Last_Used
, CHAR( GetCreateD( Lib_Name, Table_Name ) )
AS Create_Date
, A.Last_Chgd
, A.Last_Saved
, A.Last_Rstrd
FROM ( SELECT
Sys_DName AS Lib_Name
, Sys_TName AS Table_Name
, Sys_MName AS Member_Name
, Card AS Number_Rows
, Deleted AS Deleted_Rows
, CAST(CASE WHEN ( Deleted = 0 ) THEN 0
WHEN ( Card = 0 ) AND ( Deleted > 0 ) THEN 100.00
ELSE ( 100.00 * Deleted / ( Card + Deleted ) )
END
AS DECIMAL( 5 , 2 )
) AS PercntDltd
, Size AS Data_Size
, COALESCE( CHAR( DATE( LastUsed ) ), ' ' ) AS Last_Used
, COALESCE( CHAR( DATE( LastChg ) ), ' ' ) AS Last_Chgd
, COALESCE( CHAR( DATE( LastSave ) ), ' ' ) AS Last_Saved
, COALESCE( CHAR( DATE( LastRst ) ), ' ' ) AS Last_Rstrd
, DaysUsed AS Days_Used
FROM qsys2.syspartitionstat
WHERE Sys_DName = UPPER( TRIM( Schema_Name ) )
ORDER BY Sys_DName, Sys_TName, Sys_MName
) A
JOIN ( SELECT
DBName AS LibName
, Name AS TableName
, SUBSTR( Creator , 1, 10 ) AS Owner
, Label AS Desc
FROM QSYS2.SYSTABLES
WHERE Table_Type IN ( 'P', 'T' )
AND File_Type = 'D'
ORDER BY DBName, Name
) T
ON A.Lib_Name = T.LibName
AND A.Table_Name = T.TableName
ORDER BY A.Last_Used ASC
);

END;





"Contrariwise, if it was so, it might be; and if it were so, it would
be; but as it isn't, it ain't. That's logic."--Tweedledee


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Jon Paris

www.partner400.com
www.SystemiDeveloper.com




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