<aside> 💡 how to transfomr left to right

</aside>

<aside> 💡 use index number to help to pivot colomn (select advance option to don’t agg)

</aside>

<aside> 💡 fill up and filter null

</aside>

<aside> 💡 change all data type

</aside>

<aside> 💡 congreate

</aside>