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Database subtraction

egbai mmumene
Ranch Hand

Joined: Sep 18, 2012
Posts: 45
How can i minus 1 from an integer entry in a database every time a particular action is performed. The column i want to minus from has a primary key entryname
Wendy Gibbons
Bartender

Joined: Oct 21, 2008
Posts: 1107

my mind is boogling how this fits into your movies database, but anyway do you know about update statements?
 
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subject: Database subtraction