How to create unique temporary tables in MySQL procedures? -

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i creating temporary table in procedure, got error "table exists".

then tried create random name avoid collision don't know enough how execute sql strings

set @tbname = concat('temp', random_id);  prepare stmt1 'create temporary table ? (`fieldname` float not null);'; execute stmt1 using @tbname; deallocate prepare stmt1;

the code above doesn't works. why? how correct it?

 mysql> set @table_name := 'mytable';  query ok, 0 rows affected (0.02 sec)   mysql> set @sql_text:=concat('create table ',@table_name,'(id int unsigned)');  query ok, 0 rows affected (0.00 sec)

from http://rpbouman.blogspot.com/2005/11/mysql-5-prepared-statement-syntax-and.html


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