05. Quiz: Window Functions 2

Creating a Partitioned Running Total Using Window Functions

Now, modify your query from the previous quiz to include partitions. Still create a running total of standard_amt_usd (in the orders table) over order time, but this time, date truncate occurred_at by year and partition by that same year-truncated occurred_at variable. Your final table should have three columns: One with the amount being added for each row, one for the truncated date, and a final column with the running total within each year.