ACC2000: How to Sort Alphanumeric Strings Based on Their Numeric Portions (209632)



The information in this article applies to:

  • Microsoft Access 2000

This article was previously published under Q209632
Moderate: Requires basic macro, coding, and interoperability skills.

This article applies only to a Microsoft Access database (.mdb).

SUMMARY

This article shows you how to sort alphanumeric string values, based on their numeric portions.

MORE INFORMATION

The following example creates a query that sorts alphanumeric strings by their numeric portions. There can be only one alphabetical character after the numeric characters (such as "a" or "Z"; not "aa," "eee," or "BC"). This query works for any size numbers, with or without leading zeroes.
  1. Start Microsoft Access, and then create a new blank database.
  2. Create the following table:
       Table: Table1
       -----------------------
       Field Name: ProductCode
       Data Type: Text
    					
  3. Open the table in Datasheet view, and then type the following records:

    10a
    1d
    100b
    24c
    24a
    1
    89b
    14

  4. Create the following query based on Table1:NOTE: In the Field expression of the following query, an underscore (_) at the end of a line is used as a line-continuation character. Remove the underscore from the end of the line when re-creating this query.
       Query: Query1
       ------------------------------
       Field: ProductCode
       Show: Yes
    
       Field: PRE: Val([ProductCode])
       Sort: Ascending
       Show: No
    
       Field: SUF:IIf(Val(Right$([ProductCode],1))=0,Right$([ProductCode],1),"")
       Sort: Ascending
       Show: No
    					
  5. Run the query. The query separates the numeric portion (PRE) and the alphabetical portion (SUF) into two separate fields. The query sorts on the numeric portion of the ProductCode field, and displays the complete ProductCode field as follows:

    1
    1d
    10a
    14
    24a
    24c
    89b
    100b


Modification Type:MajorLast Reviewed:6/24/2004
Keywords:kbhowto kbinfo kbusage KB209632