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Skill Topic ยท Cinematic

๐Ÿ“˜ MySQL Subqueries

Query ke andar query โ€” powerful nested queries! ๐ŸŽฏ

Topic 1
๐Ÿ“š

๐Ÿ“Œ 1. Subquery Kya Hai?

๐Ÿ“š ` โ”Œโ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ” โ”‚ SUBQUERY = Query in Query โ”‚ โ”‚ โ”‚ โ”‚โ€ฆ
Topic 2
๐Ÿ’ก ๐Ÿ“Š ๐Ÿ”ฌ

๐Ÿ“Œ 2. Scalar Subquery (Single Value)

๐Ÿ’ก `sql -- โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ• -- Returns: ek value (1 row, 1 column) --โ€ฆ
Topic 3
๐Ÿ”’

๐Ÿ“Œ 3. Column Subquery (Multiple Values)

๐ŸŽฏ `sql -- โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ• -- Returns: multiple values (list) --โ€ฆ
Topic 4
โญ

๐Ÿ“Œ 4. Row Subquery

โญ `sql -- โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ• -- Returns: ek row (multiple columns) --โ€ฆ
Topic 5
โœจ

๐Ÿ“Œ 5. Table Subquery (Derived Table)

๐Ÿ”‘ `sql -- โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ• -- Returns: puri table (FROM clause me) --โ€ฆ
Topic 6
โœจ

๐Ÿ“Œ 6. EXISTS / NOT EXISTS

โœจ `sql -- โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ• -- EXISTS โ€” "kya result hai?" --โ€ฆ
Topic 7
๐Ÿ”’

๐Ÿ“Œ 7. Correlated Subquery

๐ŸŒŸ `sql -- โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ• -- Outer query ki har row ke liye inner runโ€ฆ
Topic 8
๐Ÿš€

๐Ÿ“Œ 8. Subquery in Different Clauses

๐Ÿš€ `sql -- โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ• -- Subquery har jagah use ho sakti hai --โ€ฆ
Topic 9
๐Ÿ“ฅ ๐Ÿ“ฅ ๐Ÿง  ๐Ÿ”ฌ ๐Ÿ’ก ๐ŸŽฏ

๐Ÿ“Œ 9. ANY / ALL

๐Ÿ“š `sql -- โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ•โ• -- ANY = kisi bhi ek se satisfy -- ALL = sabโ€ฆ
Topic 10
๐Ÿ’ก

โœ… Summary

๐Ÿ’ก KEY POINTS: - Scalar = ek value return (AVG, MAX โ€” WHERE price > subquery) - Column =โ€ฆ
Quick Quiz
๐Ÿง  QUIZ TIME

Quiz โ€” Question 1

๐Ÿ“˜ MySQL Subqueries ka sabse sahi definition kya hai?

Complete! ๐ŸŽ‰
COMPLETE

๐Ÿ“˜ MySQL Subqueries Complete!

Aliens School ยท HIEN ยท Cinematic Knowledge

โœ…

๐Ÿ“˜ MySQL Subqueries Complete

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