select query for time interval in mysql and php

select query to select all records that were inserted in 15 minutes.for ex if now time is 10:00 then it shoulld fetch all record in开发者_如何学JAVAserted from 9:45 to 10:00

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Assuming you have a DATETIME column named created in your table:

SELECT id FROM tablename 
WHERE ((created > DATE_SUB(NOW(), INTERVAL 15 MINUTE))
  AND (created < NOW()))

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select * from table WHERE datetimeField BETWEEN date_add(NOW(),INTERVAL -15 MINUTE) AND NOW();