Re: automatically updating all records, one by one in a db
This WebDNA talk-list message is from 2000
It keeps the original formatting.
numero = 36249
interpreted = N
texte = on 17.08.2000 13:16, Dale at stuff@colony.net wrote:> I have to update some information in each record of a live production > database. There are a couple of different fields that need to be updated and I > want to make sure I do things correctly as to not mess up my db.Make a copy first :) > So how do I do a search, with results for only 1 at a time, make the changes, > then proceed to the next record that needs to be updated? You don't have to search for each record individually. [founditems] is in fact a loop which automatically steps through all found records. Everything between [founditems] and [/founditems] is executed record for record. You can use [showif]'s there to define conditions for various actions. For each run through [founditems] you can use data of the current record if necessary.If you do not need individual data of the current record but rather change all or a selection of records by given criteria, a search is not necessary. Use [replace], which is actually query and replace in one command. -- btw - to change fields within a [founditems] loop you have to use [replace] either. Since [replace] containes a search this is (in my opinion) wasted time - I never understood why I have to do execute a new query for a already loaded record... Peter ------------------------------------------------------------- This message is sent to you because you are subscribed to the mailing list
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on 17.08.2000 13:16, Dale at stuff@colony.net wrote:> I have to update some information in each record of a live production > database. There are a couple of different fields that need to be updated and I > want to make sure I do things correctly as to not mess up my db.Make a copy first :) > So how do I do a search, with results for only 1 at a time, make the changes, > then proceed to the next record that needs to be updated? You don't have to search for each record individually. [founditems] is in fact a loop which automatically steps through all found records. Everything between [founditems] and [/founditems] is executed record for record. You can use [showif]'s there to define conditions for various actions. For each run through [founditems] you can use data of the current record if necessary.If you do not need individual data of the current record but rather change all or a selection of records by given criteria, a search is not necessary. Use [replace], which is actually query and replace in one command. -- btw - to change fields within a [founditems] loop you have to use [replace] either. Since [replace] containes a search this is (in my opinion) wasted time - I never understood why I have to do execute a new query for a already loaded record... Peter ------------------------------------------------------------- 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://search.smithmicro.com/
Peter Ostry
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