Writting a select when you don't know the structur

Writting a select when you don't know the structur
Ok... if you've opened my thread... thanks.Now. I've got to the point where i can select from a variable likeselect * from (table_name_variable) into it_internal_table where blah blah blahHow can I do this so the structure of table_name_variable (this table) can change? I'm basicly selecting off a table trying to put each record into one big string.it_internal_table was declared likedata: begin of it_internal_table occurs 0, record(2048), endof.......but this is not working.... any ideas!!!!????