Playlist
Free4 videos, in order
SQL past the first query, in working order: Mirshafiei's pivot-table bridge into SELECT, Pragmatic Works' two T-SQL beginner lessons, and window functions as the capstone. Run the data problems on the practice floor after each step.
Every video plays through YouTube’s official embed player and belongs to the channel named on its row. Work down the list. The order is the curriculum.
EasyMohammad Mirshafiei
SQL introduced through the pivot table you already understand: SELECT, GROUP BY, and ORDER BY, with every number checked against the same table in Excel. The gentlest on-ramp to the next language on this shelf.
EasyPragmatic Works
T-SQL tips and tricks for beginners, part one: the small syntax and structure habits that make queries readable and correct. A working companion to the first-query lesson already on this shelf.
EasyPragmatic Works
Part two of Pragmatic Works' T-SQL beginner series, going further into the errors beginners make and the patterns that prevent them. Watch the pair together before a data exercise.
MediumPragmatic Works
Window functions in SQL: ranking, running totals, and comparisons across rows without collapsing the table. The single largest step up from basic SELECT fluency, and the one data screens love.
Put the patterns to work while they are fresh. The playlist is the input. The practice floor is where it becomes a skill.
I am Richard, your interviewer here. I run cases with you, drill your math, and tell you plainly which part of your game needs work. Ask me something, or press Hear it and I will introduce myself out loud in your device voice. The studio voice connects at launch.
He answers from the guide's own content, names the level it lives in, and does not invent firm facts. On member accounts he remembers your year, school, progress, and scores; you can see and clear what he remembers.