Re: index code
This WebDNA talk-list message is from 2005
It keeps the original formatting.
numero = 63312
interpreted = N
texte = Good points! thank you Brian!chrisOn Oct 28, 2005, at 20:51, Brian Fries wrote:> Are you wanting these index values assigned randomly or > sequentially? Random is easier to generate (just pick two random > characters from the list of valid characters), but will potentially > take multiple attempts to find a unique value, especially when many > of the values have already been used. Sequential assignment makes > it easier to find a unique value - just find the highest current > value then generate the next value sequentially - but the > generation of the next value is trickier (see [listchars] and > [findstring] if you're using WebDNA version 6 - they will be > helpful here).>> Another significant consideration is that by default WebDNA's > searches are not case sensitive, so values of "aa", "Aa", "aA" and > "AA" are all seen as the same value. You will need to make sure to > specify that the index field is case sensitive (fieldnamecase=T) in > every search.>> - Brian>>> On Oct 28, 2005, at 3:49 PM, Christophe Billiottet wrote:>>>> Good evening to you all! we must index a database using no less >> and no more than two letters/numbers. To do this, each letter/ >> number must be in [a-z][A-Z][0-9] range. For instance, a record >> will be indexed 'c9' while another one will be 'Ht' or 'zs'.>>>> This gives 3844 possibilities (26+26+10)*(26+26+10)>>>> Does anyone has an idea to automatically create such an index? >> each time a record is added, a new unique two letters code index >> would be added.>>>> chris>>>>>> Brian Fries> BrainScan Software>>>>> -------------------------------------------------------------> This message is sent to you because you are subscribed to> the mailing list
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Good points! thank you Brian!chrisOn Oct 28, 2005, at 20:51, Brian Fries wrote:> Are you wanting these index values assigned randomly or > sequentially? Random is easier to generate (just pick two random > characters from the list of valid characters), but will potentially > take multiple attempts to find a unique value, especially when many > of the values have already been used. Sequential assignment makes > it easier to find a unique value - just find the highest current > value then generate the next value sequentially - but the > generation of the next value is trickier (see [listchars] and > [findstring] if you're using WebDNA version 6 - they will be > helpful here).>> Another significant consideration is that by default WebDNA's > searches are not case sensitive, so values of "aa", "Aa", "aA" and > "AA" are all seen as the same value. You will need to make sure to > specify that the index field is case sensitive (fieldnamecase=T) in > every search.>> - Brian>>> On Oct 28, 2005, at 3:49 PM, Christophe Billiottet wrote:>>>> Good evening to you all! we must index a database using no less >> and no more than two letters/numbers. To do this, each letter/ >> number must be in [a-z][A-Z][0-9] range. For instance, a record >> will be indexed 'c9' while another one will be 'Ht' or 'zs'.>>>> This gives 3844 possibilities (26+26+10)*(26+26+10)>>>> Does anyone has an idea to automatically create such an index? >> each time a record is added, a new unique two letters code index >> would be added.>>>> chris>>>>>> Brian Fries> BrainScan Software>>>>> -------------------------------------------------------------> This message is sent to you because you are subscribed to> the mailing list .> To unsubscribe, E-mail to: > To switch to the DIGEST mode, E-mail to digest@talk.smithmicro.com>> Web Archive of this list is at: http://webdna.smithmicro.com/>-------------------------------------------------------------This message is sent to you because you are subscribed to the mailing list .To unsubscribe, E-mail to: To switch to the DIGEST mode, E-mail to Web Archive of this list is at: http://webdna.smithmicro.com/
Christophe Billiottet
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