Overview
Two tracks: 18 Excel lessons and 8 SQL lessons, all of it the kind of work that turns up in a real analyst job. Your progress stays on this device.
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All Excel lessons
Add up a column of numbers
Find the middle of a set of numbers
Count numbers, or count anything at all
Do one thing when true, another when false
Count only the rows that meet a condition
Add up only the rows that meet a condition
Count rows that meet several conditions at once
Add up rows that meet several conditions at once
The older lookup you will still meet in real files
Find a row by one value, bring back another
Find the smallest and largest numbers in a range
Control how many decimal places a result keeps
Test whether every condition or any condition is true
Replace formula errors with a useful result
Extract a useful part from a text code
Clean stray spaces and measure text length
Join text and cell values into one result
Find a position, then return the value at that position
SQL lessons
Pick the columns you want and drop the rows you do not
Put the rows in an order that means something, then take the top few
Ask what values exist without being handed the same one ten times
Turn a column of numbers into one number that answers the question
One row per region instead of one per order
Two tables, one result, matched on the column they have in common
Turn a number into a word people can actually read
Let one query work out the number the other one needs
Everything here runs in your browser, including the SQL. Nothing is sent anywhere, and there is no account.