Network schema in DBMS in hindi

Network schema, jise Network Data Model ke roop mein bhi jaana jaata hai, ek database management system (DBMS) concept hai, jisme data ko network-like structure mein organize kiya jaata hai. Ye ek purane data model hai aur hierarchical data model ka ek extension hai. Network schema mein data ko records aur relationships ke collection ke roop mein represent kiya jaata hai.

Network schema in DBMS in hindi

DBMS के ये Topics के बारे में जानें :-

Network schema mein data ko network of nodes aur edges ke through darshaaya jaata hai. Nodes, jo ki records ya entities ko represent karte hain, ke beech mein relationships ya edges hoti hain. Har node multiple relationships se jude hote hain, jisse network structure ban jaata hai.

Kuch mukhya tatva Network schema ke hain:

  1. Records: Network schema mein data ko records ke roop mein represent kiya jaata hai. Har record, ek specific entity ya data item ko darshaata hai. Records ke properties aur attributes fields ke roop mein darj kiye jaate hain.

  2. Relationships: Network schema mein har record ka ek ya adhik relationships ke saath juda hota hai. Relationships, edges ke roop mein darshaaye jaate hain, jo nodes (records) ko jodte hain. Har relationship mein source record aur target record ke beech mein ek association hoti hai.

  3. Owner-Member Concept: Network schema mein relationships owner-member concept par kaam karte hain. Isme ek record owner record ke roop mein consider hota hai aur dusre records owner record ke members hote hain. Relationships ke through, ek owner record apne members ko access kar sakta hai.

  4. Navigational Access: Network schema mein data retrieval aur manipulation navigational access ke through hota hai. Data ko access karne ke liye, specific paths (relationships) ko follow kiya jaata hai. Records ko navigate karne ke liye, programmers ko explicit programming logic ka istemal karna padta hai.

Network schema ke faide hain ki isme complex relationships aur interconnected data ko darshaaya jaa sakta hai. Isme data redundancy kam hoti hai, kyonki data multiple records ke beech mein shared ho sakta hai. Network schema relational databases ke multiple-to-multiple relationships aur complex data structures ko handle karne mein sahayata karta hai.

Halaanki, Network schema ka istemal aajkal kam ho gaya hai aur Relational Model aur Object-Oriented Model jaise modern data models ka istemal adhik hota hai. Relational databases aur SQL (Structured Query Language) relational data manipulation ke liye prachalit hain, jabki Object-Oriented Model object-oriented programming concepts aur flexibility pradaan karte hain.

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