access multiple my sql database at a time? -


how can access multiple sql database @ time, mechanism behind it????? eg: have 3 different database contain product(shoes) along price , there description etc... whenever user type shoes , set price ... search bar should able retrieve data in respect of price.. multiple database..

you can use 

select * database1.products field = ? union  select * database2.products  field = ? union  select * database3.products field = ?

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