Ok...here is my issue...I'm pulling a few thousand records from a cloud REST query and updating a local table during a CRON and inserting and updating existing records with the pulled data. ie
INSERT INTO `property` ($columns_string)
VALUES ($values_string) ON DUPLICATE KEY UPDATE $update_string
pretty standard stuff...but I'm having an issue where records are being "orphaned" if they don't exist any more in the pulled data ie I need to either delete existing records that no longer exist in the new data or update a flag or something to tell my system to no longer process them the same way.
I hope i'm being clear...
EDIT: I should add that the REST pull is actually looping thru several different "types" of data and the INSERT is stuffing them all into one master table, so a simple "delete if not exists.." won't really work..
advTHANKSance, - mark
Add a column "flag tinyint(1)" in table "property". Before uploading update column value to 0
update `property`
set flag = 0
In "insert into" clause update this new column
INSERT INTO `property` ($columns_string, flag)
VALUES ($values_string, 1) ON DUPLICATE KEY UPDATE $update_string, flag=1
And after uploading remove/update unused field
update `property`
set active=0
where flag=0
In case if field "active" means 1 - as active, and 0 - is non active
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