SQL Revision, Interview and Comparison Cards (Ravi Sir's Cards)

Free SQL cards in very easy English: 16 revision, 16 interview and 16 comparison cards. Each card stands alone. Save the PNG; the QR opens the full lesson.

मराठी cards · SQL course

Chapters

• What Is SQL and Why Analysts Need It (3 cards)
• Install SQLite and DB Browser (Windows and Mac) (3 cards)
• SELECT Basics: Read Rows Without Changing Data (3 cards)
• WHERE: Keep Only the Rows You Need (3 cards)
• ORDER BY, DISTINCT and Top-N Results (3 cards)
• SQL Data Types Analysts Actually Meet (3 cards)
• NULL Values: Missing Data Done Right (3 cards)
• CASE WHEN: If-Then Logic in SQL (3 cards)
• Date and Time Queries for Analysts (3 cards)
• Text Functions Analysts Use Daily (3 cards)
• Aggregate Functions: SUM, COUNT आणि AVG aggregates MIN MAX (3 cards)
• GROUP BY: One Row Per Group (3 cards)
• HAVING: Filter Groups After Aggregates (3 cards)
• Why Tables Join: Keys and Relationships (3 cards)
• INNER JOIN and LEFT JOIN (The Two You Need First) (3 cards)
• SQL for Excel Users (Term Map + Side-by-Side) (3 cards)