SQL Server, five minutes. You write the query. We tell you if it’s right. No videos to zone out in front of: a ticket lands, you type, you send it back.
A message comes in. You write the query. You send the results. If it’s wrong, they tell you what’s wrong, the way a colleague would. If it’s right, the next one lands.
Seven working days of about six tickets each. A walkthrough the first time you meet CASE, LEFT JOIN or a CTE, then two reps on your own. Five minutes a ticket is a month of days.
Ten tickets to learn the loop. The rest of the week is the tickets people actually get. See every ticket by name.
Prices in GBP. Yearly works out at about £6.60 a month.
Short pages on the SQL Server functions people search for at work, each with a ticket to try it on.