1:25
PIVOT in SQL: Rows to Columns Without a Spreadsheet (Portable Pattern) #shorts
Data & AI with Varath
1:19
GROUP BY ROLLUP: Subtotals + Grand Total in 1 Query (Stop UNIONing) #shorts
1:24
NTILE: Bucket Customers Into Quartiles in 1 Query (Stop Hard-Coding LIMITs) #shorts
LAG and LEAD: Month-over-Month Growth in 1 SQL Query (Stop Self-Joining) #shorts
LATERAL JOIN: Top 3 Orders Per Customer in 1 Query (17x Faster) #shorts
1:23
EXISTS vs IN — The Performance Trap (30x Real Benchmark) #shorts
Correlated Subquery vs JOIN — Pick the Faster One (56x Real Benchmark) #shorts
Self-Join: Find Duplicate Customers in 1 Query (No Scripts) #shorts
1:17
INNER vs LEFT JOIN — When to Use Each (Customer Order Demo) #shorts
1:06
The 1 SQL Question That Ends Every Data Interview (Nth Highest Salary) #shorts
1:01
The SQL Window Function Frame Clause Nobody Uses (Rolling Windows) #shorts
1:02
Stop Unnesting JSON in Python — Your Database Can Do It (10x Faster) #shorts
0:59
MERGE: SQL's Most Underrated Feature (Stop Writing UPDATE+INSERT+DELETE) #shorts
