[Solved] How to Geocode 300,000 addresses on the fly?

user1089553 Asks: How to Geocode 300,000 addresses on the fly?
I have a database which has 300,000 address, which are to be shown on map. I know if I geo-code all the address it will be too expensive for me. So I was wondering if it is possible to geo-code the address on the fly/ realtime, when a user would select a address (a property address) it would search through the database and then geo-code the address and then map it with other attributes.

It would be really nice if you could share a code, concept, or anything. By the way my backend is on mysql supported by Joomla.

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