change size of ROW IN TABLE

i have a table with 5 column and i wont that in the first column the row size be bigger then the second i try to explain my self better ,in the first column i have perid that repeat oneself LIKE THE SAME PERID FOR OTHER COURSES i wont to see it just one time like to uniun all this rows with the same perid into one row in that up i have one perid in the other coulmn display his course regular data .

<b>EXAMPLE</b>

i have

perid qusht

105 sequrty

105 sequrty2

105 sequrty23

i wont

perid qusht

105 sequrty

bb2

bb3

107 wer

wer2

wer3

i appraise if you read my parliamentary question

THANKES VERY MUCH FOR YOUR ANSWER