DATA from structure

hi firends,

i need to retreive data from table and structure is it possible

eg-- AAA is table having atr no

BBB is strucrure in run time its having some data related to AAA table atrno

i want a select query for this plz some one provide me with example code

but i know structure will not store value.my requirement is for IDOC so structure carries data so ineed to track that

pointe will be rewarded

thanks in advance

raj