swood@vela.acs.oakland.edu ( EVENSONG) (04/25/91)
I am about to delve into the world of DBman and DataBase III+ style programming
I am hoping to be able to do a search of a couple of various feilds in my
database. I have set up a couple text feilds that are made up of letters
and/or ?'s. I have a list of questions that I ask of the people that I am
adding to the database, and if they apply I put a letter, if they do not,
I put a question mark (I did this, as that is one of the wildcards they
mentioned)
a finished string might look like : 'AB?D?F?H??KLM?O???ST??WX?Z'
for what of course would be complete as : 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
I am going to be writing a program then to find the closest match(es)
sort of like a dating service, but not quite. Anyone have any suggestions
on how to go about this?
swood
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UUCP: ...!uunet!umich!{vela, argo, unix, nucleus}!swoodrodent@netcom.COM (Ben Discoe) (05/02/91)
swood@vela.acs.oakland.edu ( EVENSONG) writes: >I am about to delve into the world of DBman and DataBase III+ style programming I happen to have written a lot of the code in dBMAN (especially the Amiga and Atari versions) so I can surely help. >I am hoping to be able to do a search of a couple of various feilds in my >database. >a finished string might look like : 'AB?D?F?H??KLM?O???ST??WX?Z' >I am going to be writing a program then to find the closest match(es) Well the dBMAN (and dBASE) way of doing this would be to write a UDF (or procedure) that scans two strings, character by character, and sums up how close they are. Then you simply scan the database a record at a time to find the closest record. Rather simple. Speaking of dBMAN, I can't release the latest version for the Atari until there is a compiler that supports the 68030! (we have only a TT030 for development) Mark Williams compiles, but has no debugger (well, it has a crude monitor that doesn't run on the TT anyway) and recently decided not to support the Atari at all. Lattice also compiles, but the executable won't run with a 68030 and the debugger doesn't support the 030 either. Lattice (Hisoft, actually) does have a 68030 version - but they want developers to pay $300 MORE just to BETA-TEST it. Sheesh! This (incompatiblity of existing software with the latest hardware) is kind of sad compared to the Amiga... we use a 4-year old compiler on our Amiga 3000, which runs perfectly (even the source-level debugger) and creates trouble-free executables. I assume this is because the OS was intended to gracefully scale upwards, unlike the Atari. Perhaps the developers just ignored or lacked a set of compatibility guidelines. >swood --------------- Ben Discoe, radical ecologist, amigoid, computer scientist. Like everyone else in San Jose, I only live here 'cuz the job.
optimiza@utrcu1.UUCP (Streng) (05/05/91)
Another question about DBMan: Is it possible to send a NUL byte to a (serial, MIDI)-port? I have tried this in a number of ways, and it looks as if DBMan treats all things to be sent to ports as C strings, so the NUL is seen as a terminating character, and never transmitted. aTdHvAaNnKcSe, -- Henk de Leeuw optimiza@utwente.nl optimiza%utrcu1.uucp@uunet.uu.net