What is the Internal Process of Indexing in SQL? (Hindi)

 What is the Internal Process of Indexing in SQL?

To Dosto aaj hum padenge , ki indexing work kaise karti h internally or kis algorithm par work karti hai,To jayada time na lete hue suru karte hai.

Introduction.

Aaj ki technology powered duniya main , database ek application ka engine hota hai, jo ki data ko store and manage karne m use hota hai. And isme ek super cool technique hai jiska naam Indexing hain.Ye Super Cool technique humare data to fastly access karne main help krti hai.

Indexing kaam kaise karta hai? Chaliye step-by-step samjhein:

Step 1: Indexing Kya Hai?

Sabse pehle samajh lete hain ki indexing kya hota hai. Imagine karein apka database ek bada sa library hai aur aapko ek specific book dhoondhni hai. Indexing wahi librarian hai jo aapko bataega ki woh book kaunsi shelf par hai. Database indexing bhi kuch aise hi kaam karta hai, woh data ko organize karta hai taki aapki queries jaldi execute ho sake.

Step 2: Andar Ki Process

Ab, indexing ke andar ki process par charcha karte hain. Jab aap kisi column pe index lagate hain, toh database ek separate data structure banata hai jise hum index kehte hain. Yeh index ek table ke column ke values aur unke corresponding row numbers ko store karta hai. Iska mtlb, jab aap query run karte hain, database pehle index ko dekhega aur phir us index se required data ko retrieve karega.

Step 3: Algorithm Ka Magic

Andar ki process mein kaam karne wale algorithm ka chayan karna bhi behad mahatvapurna hai. Ek popular algorithm hai B-Tree. Yeh algorithm data ko hierarchical tree structure mein store karta hai. Har node ek range ko represent karta hai, jisse data jaldi retrieve ho sake. Ismein searching, inserting, aur deleting bhi efficient tareeke se hota hai.

Step 4: Algorithmic Variations

B-Tree ke alawa bhi kuch aur algorithms ka istemal hota hai base kuch specific use cases ke liye. Hash indexing ek aisa algorithm hai jo hash function ka istemal karta hai, lekin yeh sirf equality queries ke liye hi efficient hai.

Step 5: Dhyaan Mein Rakhna

Indexing ka istemal karte waqt savdhani bartani chahiye.Kyuki Har ek index extra space le leta hai, isliye zaroorat se zyaada indexes create na karein.Kyuki jyada indexing  write operations ko slow kar sakte hain aur extra space consume kar sakte hain.

Conclusion:

Toh dosto, SQL indexing ek powerful tool hai jo aapki database queries ko turbocharge karta hai. Andar ki process mein algorithms ka istemal karte hue, yeh data ko organize karta hai aur queries ko lightning speed mein execute karne mein madad karta hai. Samajhna mushkil nahi hai, bas thoda sa 

dheyan aur logic lagana padta hai.