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MAX Number

Posted on 2007-11-26
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Last Modified: 2012-06-21
Morning,

Im having a bad morning, im trying to return 1 record..

SELECT DISTINCT SerialNo, MAX(DISTINCT PartNo) AS PartNo, MAX(DISTINCT ShippedDate) AS ShippedDate, fdescript, fcusrchr1
FROM         MACHINESEARCH
GROUP BY SerialNo, PartNo, ShippedDate, fdescript, fcusrchr1
HAVING      (PartNo LIKE @PartNo%) AND (SerialNo = @SerialNo

the issue i have it returns 2+ records,
SerialNo | PartNo      | ShippedDate | fdescript | fcusrch1
-----------------------------------------------------------------
00010       12435-01    25/10/2007     abc            12
00010       12435-02    27/10/2007     addwww   12          <----------- i want this row only

I only want 1 row with the highest(max) PartNo
can someone show me how to do this please
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Question by:ziwez0
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4 Comments
 
LVL 143

Expert Comment

by:Guy Hengel [angelIII / a3]
ID: 20349347

SELECT t.serialno, t.partno, t.shippeddate, t.fdescript, f.fcusrchr1
FROM         MACHINESEARCH t
 WHERE (t.PartNo LIKE @PartNo%) 
  AND (t.SerialNo = @SerialNo
  and t.shippeddate = ( Select max(i.shippeddate)
            from MACHINESEARCH i
           WHERE (i.PartNo LIKE @PartNo%) 
             AND (i.SerialNo = @SerialNo
            )

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0
 
LVL 6

Expert Comment

by:Rajesh_mj
ID: 20349433

SELECT TOP 1 SerialNo,  PartNo AS PartNo,  ShippedDate AS ShippedDate, fdescript, fcusrchr1
FROM         MACHINESEARCH
WHERE      (PartNo LIKE @PartNo%) AND (SerialNo = @SerialNo)
ORDER BY ShippedDate DESC 

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0
 
LVL 11

Accepted Solution

by:
yuching earned 2000 total points
ID: 20355884
SELECT SerialNo, PartNo, ShippedDate, fdescript, fcusrchr1
FROM         MACHINESEARCH a
INNER JOIN (
           SELECT SerialNo, Max(PartNo)  As MaxPartNo
           FROM    MACHINESEARCH
           WHERE PartNo LIKE @PartNo% AND SerialNo = @SerialNo
           GROUP BY SerialNo
) b ON a.SerialNo = b.SerialNo and a.PartNo = b.MaxPartNo

GROUP BY SerialNo, PartNo, ShippedDate, fdescript, fcusrchr1
0
 
LVL 2

Author Closing Comment

by:ziwez0
ID: 31410958
Thank you
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