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Sorting

Hi EE
I have a simple problem sorting. I have numbers and characters eg H1.
Currently these numbers range from H1 to H50. If I sort H1 H2  H4 H5 H6 H28 and H30 I get
H1
H2
H28
H30
H4
H5
H6
is there a way to be able to display
H1
H2
H4
H5
H6
H28
H30

Any help appreciated

chestera
0
chestera
Asked:
chestera
2 Solutions
 
Pratima PharandeCommented:
try this  T is table names and Field1 is field name



SELECT Field1 from T
order by cint(Mid(Field1,2,2) )
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chesteraAuthor Commented:
Pratima Pharande

Looks good thank you. It's late night here  I will try tomorrow

Alan
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mbizupCommented:
The above will work as long as your numeric portion is limited to one or two digits.  

This variation simply ignores the H for sorting, so it will handle any number of digits:

SELECT Field1 FROM T
ORDER BY Clng(Replace([Field1],"H",""))

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And more generically, this will ignore the first character (H or anything else):

SELECT Field1 FROM T
ORDER BY Clng(Right([Field1],Len([Field1]) -1)

Open in new window


Also, if you as the developer have any say in naming/numbering conventions like this,  formatting your numbers to be consistent in length will make them automatically sort properly.  You would use leading/padding zeros to make the numeric portions consistent.

For example -  the following, using a single letter prefix followed by three numeric digits will always sort first by letter, and then by number with no SQL gymnastics:

A001
A002
A004
A005
A006
A028
A030
H003
H009
H015
H022
H100
etc...
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Jeffrey CoachmanCommented:
<No Points wanted>
Going even deeper...
If you had even more control over this data.
(For example, you are the developer and you just recently created this table design...)
You could split this field into two, or possibly more, separate fields (The letter portion and the number portion)
Then simply concatenate them back together for "display" purposes.
Then you could always sort by the numeric potion, ...but display the concatenated version.

This might also be useful if you ever needed to add other "segments" to this value...
For example:
H126-A, 400B45, ...etc

Just anther angle to consider in the future...
;-)

JeffCoachman
0
 
chesteraAuthor Commented:
Jeffrey Coachman
This was going to be my next move and I might adopt. Thank you for the input

Alan
0
 
chesteraAuthor Commented:
Thank you both for you input a great help and appreciated
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