I've been running the below piece of code in an event scheduler for the past 3 years without any issue.
UPDATE `jos_virtuemart_product_customfields` SET `customfield_value`= `customfield_value` - 1 WHERE `virtuemart_custom_id` = 22 AND `customfield_value` !="0"However, since yesterday, I have been getting the following error:
Quote#1292 - Truncated incorrect DOUBLE value: ''
I haven't changed anything in my Virtuemart DB or done anything remotely different. Has anyone experienced this before ?
Tested here and seems to work fine
Some googling
QuoteThis message means you're trying to compare a number and a string in a WHERE clause; either make sure they have similar declarations, or use an explicit CAST to convert the number to a string. If you turn off strict mode, the error should turn into a warning.Jun 30, 2016
Jörgen @ Kreativ Fotografi
@AH thank you, glad it is still working. Must be something wrong on my end then.
@Jorgen: I also found the above page, thanks for providing the quotes. I will try fixing it.
Tell us how it goes.
Jörgen @ Kreativ Fotografi
@Jurgen: I just ran it again and all seems back to normal. That was pretty weird :D
I did re-upload all the customfield_values where virtuemart_custom_id = 22 yesterday afternoon, so maybe that helped to sort it out.
Nice to hear that it works again, pity that the cause remains some what unknown.
Jörgen @ Kreativ Fotografi
I found the reason why it was not working!
There was one null value in the customfield_values where virtuemart_custom_id = 22, so it was impossible to minus this value by "1". This is why I got the error!
Great - thanks for the update