Update records in a table in a process

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jannes
Posts: 71
Joined: Tue Jul 02, 2019 12:22 pm

Update records in a table in a process

Post by jannes »

Table with 2 fields :
Name : Plain text
Period : Number

I want to update (increase) field “period” by 1
In SQL : UPDATE person SET period = period + 1 WHERE period > 2017

I expect :
FIND Persoon WHERE Persoon.Period > 2017
Persoon.Period=Persoon.Period + 1

But this doesn’t work properly, all selected records are updated to the same value.

So I used an extra : IN BATCHES OF 1
FIND Persoon WHERE Persoon.Periode > 2017 IN BATCHES OF 1
Persoon.Periode=Persoon.Periode + 1

It worked but I guess it will be very slow when there are many records.
Jaymer
Posts: 1996
Joined: Tue Jan 13, 2015 10:58 am
Location: Tampa, FL
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Re: Update records in a table in a process

Post by Jaymer »

Click Here to see a collection of my tips & hacks on this forum? Or search for "JaymerTip" in the search bar at the top.

Jaymer
Aware Programming & Consulting - Tampa FL
eagles9999
Posts: 2235
Joined: Mon Jul 02, 2012 12:24 am
Location: Ulaanbaatar, Mongolia

Re: Update records in a table in a process

Post by eagles9999 »

Have sent you a sample bsv on Skype Jannes
Cheers,
Mark
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