Re: [WebDNA] Query re: autonumber
This WebDNA talk-list message is from 2010
It keeps the original formatting.
numero = 105527
interpreted = N
texte = > I recently used it and it bombed out - i.e all the autonumbers generated by > the append were the same and were negative! I think this was because one of > the record IDs had been generated using [cart]. There's a limit to the number of digits in a "number" in webdna, and the [cart] tag probably creates values that exceed this limitation. I think the rule is to not use values with more than 12 digits to the left of the decimal place in order to avoid this issue. > Also what happens if records are deleted, i.e. the IDs are not all fully > sequential - does autonumber work OK in this situation? Yes, it's fine. The way I understand it, autonumber finds the highest value in the field at the time of the append, then adds 1.
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> I recently used it and it bombed out - i.e all the autonumbers generated by > the append were the same and were negative! I think this was because one of > the record IDs had been generated using
[cart]. There's a limit to the number of digits in a "number" in webdna, and the
[cart] tag probably creates values that exceed this limitation. I think the rule is to not use values with more than 12 digits to the left of the decimal place in order to avoid this issue. > Also what happens if records are deleted, i.e. the IDs are not all fully > sequential - does autonumber work OK in this situation? Yes, it's fine. The way I understand it, autonumber finds the highest value in the field at the time of the append, then adds 1.
Kenneth Grome
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