fetching data from one internal table and populating into other table

hi

i am working on a report program.

here,i have my data in a internal table(having only one field) i.e. only one column in the table.

now i want to populate this data into other internal internal table that has 13fields i.e. 13 columns.

so could anyone let me know how can i work on this.

i am looping the internal table with one field into a work area from there i am not able to proceed ahead.

thanks in advance