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06-18-2006, 09:10 AM
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Junior Member
Join Date: Jun 2006
Posts: 25
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Help me to Subtracting Values of fields
hi,
I have a MySQL DataBase with a table called building which is simply a list of building names with id's and another table with the fields ports_used, total ports. I would like to have another field called ports_free that will take the total ports and subtract ports_used for each building. johalber |
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