Special trick - change table orientation
eg challenge 330
to change the table like this, we need to use both transpose and crosstab
we need to one more column (F1) because it will become the header in crosstab step
first transpose all other columns with F1 as key columns
then in crosstab step,
group by name so that it become row of column
specific the column headers and value as our value in the tables (aggregation doesn’t matter)