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Invalid Key length error

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    Invalid Key length error

    From time to time I will run an update operation (using xbasic) and run into this error. If I close Alpha and reopen the database the operation will run fine. While using the debugger I see that this has something to do with the Field rules, at least it is calling an error on the code of 'Table.change_end(.t.)

    Since I am only changing one field that is a character field called check number What do you think would evoke such an error. All calc fields in table are using the lookupC() function. COULD THIS BE THE PROBLEM? There are no other events or codes in the field rules. Jack

    #2
    RE: Invalid Key length error

    Jack:

    Is it possible that the table field and the field in the lookup table (which is indexed) have different lengths?

    Finian
    Finian

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      #3
      RE: Invalid Key length error

      Hi Finian, I will check this but I do not think so, the main field that is changes is only 5 characters wide and in the field attributes it is 8 characters. Jack

      Comment


        #4
        RE: Invalid Key length error

        When we've run in to this is was usually the result of a corrupted memo field (which wasn't part of the key but affected the rest of the table's data). It has also occurred when 1) another field was corrupt and 2) the string of values used to make the key was "too long" (can't remember the length but probably over 150 chars).

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          #5
          RE: Invalid Key length error

          Thank you Jim, I do have a calculated field that puts together some data and is up to 200 characters. I do not think that I ever go over this but I will give this a try and see if that is indeed the villian.

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            #6
            RE: Invalid Key length error

            One thing we did to eliminate an index based on 7 or 8 fields was to add the field to the table and set the field rule to calculate it. (About 20 or 30 different reports were ordered using these fields and having the index sped their generation up. Called the field "ReportKey" for obvious reasons. The field is quite long - can't remember off hand - but at least it doesn't have to be calculated every time we rebuild / compact, etc.)

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