Sql+mysql random Data read-Advanced related issues

Source: Internet
Author: User
---advanced problem of sql+mysql random data reading
For example, there is a table class, the data is a roster, such as name, age, gender, birthplace
I now want to get a random result: according to the place of origin, each province randomly lists a record. All the provinces in the roster are to be read.
How do I write this SQL statement?

------Solution--------------------
Select m.* from (SELECT * from User order by Rand ()) m GROUP by m.area_id

User is your table name, area_id is native

Problem solving.

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