Sqlwithasif MP3 & MP4

ETL Transformation Demo: 5 SQL Steps From Raw Data to Analytics 24:40
SQL Group By vs Window Functions: ONE Difference That Every Interviewer Tests 9:30
Same Table, Same Filter, DIFFERENT COUNT?! (COUNT(*) vs COUNT(column)) 12:43
SQL Trap: Why Your LEFT JOIN Loses Rows (NULL + GROUP BY Explained) 13:39
DENSE RANK vs RANK vs ROW NUMBER Explained with a Hard SQL Problem StrataScratch #2007 16:07
SQL Trap: Why NOT IN Returns 0 Rows (Use NOT EXISTS Instead) 15:04