MySQL Variables storing database name

Question

I have a long script that I need to run on several different databases (all witht he same tables and field names).

What I would like to do is something like this:

Answer 1

It will work if you concat the entire query. Try:

set @db = 'mydb';
set @tble = 'table';

set @query = concat('INSERT INTO tablefoo SELECT * FROM ', @db, '.', @tble);
PREPARE stmt FROM @query;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;