Aliens School
Cinematic Knowledge Experience
0%
Aliens School
Now Playing
Aliens School ยท HIEN
โŒจ๏ธ Keyboard Shortcuts
โ†’Next slide โ†Previous slide SpacePlay / Pause MNarration on/off FFullscreen ?Show/hide this
Press any key to close
Skill Topic ยท Cinematic

๐Ÿ“˜ SQL SELECT DISTINCT - Unique Data Nikalna

DISTINCT se tum duplicate values hata ke sirf unique (alag alag) values nikal sakte ho! ๐ŸŽฏ

Overview
๐ŸŒŸ

๐Ÿ“˜ SQL SELECT DISTINCT - Unique Data Nikalna โ€” Quick Facts

๐Ÿ“Œ

CustomerID: CustomerName

๐ŸŽฏ

1: Ahmed Electronics

โšก

2: Sara Boutique

๐Ÿ”‘

3: Raj Traders

Topic 1
๐Ÿ“Š

๐Ÿ“Œ SELECT DISTINCT Kya Hai?

๐Ÿ“Š Normally SELECT saare records laata hai โ€” chahe duplicate hon ya nahi. Lekin SELECTโ€ฆ
Topic 2
๐Ÿ’พ ๐Ÿ“Š ๐Ÿ”ฌ

๐Ÿ“Œ SELECT DISTINCT Syntax

๐Ÿ’พ sql SELECT DISTINCT column1, column2, ... FROM table_name;
Topic 3
๐Ÿ”’

๐Ÿ“Œ Demo Database

๐Ÿ—„๏ธ | CustomerID | CustomerName | City | Country |โ€ฆ
Topic 4
๐Ÿ“ˆ

๐Ÿ“Œ Without DISTINCT (Duplicates Ke Saath)

๐Ÿ“ˆ sql -- Saare countries nikalo (duplicates bhi aayenge) SELECT Country FROM Customers; โ€ฆ
Topic 5
๐Ÿ“ฅ ๐Ÿ“ฅ ๐Ÿง  ๐Ÿ”ฌ ๐Ÿ’ก ๐ŸŽฏ

๐Ÿ“Œ With DISTINCT (Sirf Unique Values)

๐Ÿ” sql -- Sirf unique countries nikalo SELECT DISTINCT Country FROM Customers; Result: |โ€ฆ
Topic 6
๐Ÿ“‰ ๐Ÿ“Š ๐Ÿ”ฌ

๐Ÿ“Œ DISTINCT with COUNT

๐Ÿ“‰ Kitni unique values hain yeh count karne ke liye COUNT(DISTINCT column) use karo: `sql --โ€ฆ
Topic 7
๐Ÿ”’

๐Ÿ“Œ DISTINCT Multiple Columns Pe

๐Ÿงฎ Jab tum 2 ya zyada columns pe DISTINCT use karo, to combination unique hoga: `sql -- Cityโ€ฆ
Topic 8
โœจ

๐Ÿ“Œ DISTINCT vs No DISTINCT - Comparison

๐ŸŒ `sql -- Without DISTINCT SELECT Country FROM Customers; -- Result: 6 rows (duplicatesโ€ฆ
Topic 9
๐Ÿ“ฅ ๐Ÿ“ฅ ๐Ÿง  ๐Ÿ”ฌ ๐Ÿ’ก ๐ŸŽฏ

๐Ÿ“Œ Kab DISTINCT Use Karna Chahiye?

๐Ÿ“Š | Situation | Kya Karein | |-----------|-----------| | Unique categories dekhni hain |โ€ฆ
Topic 10
๐Ÿ’พ ๐Ÿ“Š ๐Ÿ”ฌ

โš ๏ธ MS Access Me Note

๐Ÿ’พ MS Access me COUNT(DISTINCT column) directly kaam nahi karta. Workaround: `sql -- MSโ€ฆ
Topic 11
๐Ÿ”’

โœ… Summary

๐Ÿ—„๏ธ KEY POINTS: - SELECT DISTINCT sirf unique values return karta hai - Duplicatesโ€ฆ
Quick Quiz
๐Ÿง  QUIZ TIME

Quiz โ€” Question 1

๐Ÿ“˜ SQL SELECT DISTINCT - Unique Data Nikalna ka sabse sahi definition kya hai?

Quick Quiz
๐Ÿง  QUIZ TIME

Quiz โ€” Question 2

๐Ÿ“˜ SQL SELECT DISTINCT - Unique Data Nikalna ka '1' kya hai?

Complete! ๐ŸŽ‰
COMPLETE

๐Ÿ“˜ SQL SELECT DISTINCT - Unique Data Nikalna Complete!

Aliens School ยท HIEN ยท Cinematic Knowledge

โœ…

๐Ÿ“˜ SQL SELECT DISTINCT - Unique Data Nikalna Complete

1/16
0:00
REC 00:00ESC=Cancel
Aliens School
3
Recording shuru hone wali hai...
โœ…
Recording Complete
Video process ho rahi hai...
Live Class
Slide 1 / 7
Timer
00:00
๐Ÿ“ Speaker Notes
โ€”
โญ๏ธ Up Next
โ€”
โ€”
๐Ÿ—‚๏ธ All Slides