Hierarchical Model in DBMS in hindi

Hierarchical Model ek database management system (DBMS) ka data model hai, jisme data ko tree-like structure mein organize kiya jata hai. Is model mein data ko hierarchies (shreniyan) ke roop mein represent kiya jata hai, jisme ek parent node ke saath multiple child nodes judte hain.

Hierarchical Model in DBMS in hindi

Hierarchical Model pahle ke dino mein prachalit tha, lekin Relational Model ke aane ke baad iska istemal kam ho gaya.

DBMS के ये Topics के बारे में जानें :-

Hierarchical Model mein data ko parent-child relationships ke through organize kiya jata hai. Har node (node) ek specific entity ko darshata hai aur uske properties (attributes) ko fields ke roop mein darj kiya jata hai. Data hierarchy mein sabse upar root node hota hai, aur uske neeche levels mein child nodes judte hain.

Kuch mukhya tatva Hierarchical Model ke hain:

  1. Nodes (Records): Hierarchical Model mein data records ko nodes ke roop mein represent kiya jata hai. Har node ek specific entity ko darshata hai aur uske properties (attributes) ko fields ke roop mein darj kiya jata hai. Har node ko ek unique identifier ke madhyam se identify kiya jata hai.

  2. Parent-Child Relationships: Hierarchical Model mein har node ka ek parent node hota hai aur ek ya adhik child nodes ho sakte hain. Parent node se child nodes ke beech mein one-to-many relationships hote hain. Hierarchical structure se relationships ko darshaya jata hai, jisme ek node ke multiple children ho sakte hain, lekin har child node ek hi parent node se judega.

  3. Root Node: Hierarchical Model mein sabse upar root node hota hai, jise starting point ke roop mein consider kiya jata hai. Root node se neeche ke levels mein child nodes judte hain. Hierarchical Model ke har hierarchy ka ek root node hota hai.

  4. Navigational Paths: Hierarchical Model mein data retrieval aur navigation hierarchical paths (shrenivaali paths) ke through hota hai. Navigational paths parent-child relationships ke madhyam se node-to-node traversal ko darshate hain. Isme specific paths ko follow karke data ko retrieve kiya ja sakta hai.

Hierarchical Model ke faide hain ki isme data ko natural hierarchical relationships ke roop mein represent kiya ja sakta hai, jaise ki organization chart ya file system ki structure. Isme data redundancy kam hoti hai, kyonki data ek baar hi store hota hai aur parent-child relationships ke through access kiya jata hai. Hierarchical Model pahle ke database systems mein aam taur par istemal kiya jata tha, visheshkar mainframe environments mein.

Halaanki, Hierarchical Model ka istemal aajkal kam ho gaya hai. Relational Model, Object-Oriented Model, aur dusre advanced data models ka adhik istemal hota hai. Ye models data organization, data retrieval, aur data manipulation mein adhik flexibility aur ease of use pradan karte hain.

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