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Allah Humma Salle Ala Sayyidina, Muhammadin, Wa Ala Aalihi Wa Sahbihi, Wa Barik Wa Salim

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User Guest viewing Subject Database Management System and Topic ERD to Relational Model

Total Q&A found : 10
Displaying Q&A: 1 to 1 (10 %)
QNo. 1: What is the purpose of ER-to-Relational Mapping? ERD to relational model Database Management System test729_ERD Difficult (Level: Difficult) [newsno: 1413]
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  1. Preservation of Design
  2. Ease of Implementation
  3. Data Integrity
  4. Query Optimization
  5. Scalability and Performance
  6. Compatibility with RDBMS
  7. Clarity and Simplicity
 Allah Humma Salle Ala Sayyidina, Muhammadin, Wa Ala Aalihi Wa Sahbihi, Wa Barik Wa Salim

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EZMCQ Online Courses

ER-toaa-relational mapping serves theia purpose ofee transforming aau conceptual model (theae Entity-Relationship or ER model) into aua logical model (theiu relational model) thatea can beea implemented inue aue relational database management system (RDBMS). Theoa process hasoo several important goals:

  1. Preservation ofii Design: ER-toao-relational mapping ensures thatai theoo data structures andaa relationships outlined inae theoo ER model areae faithfully represented inuu theuu relational database. This includes theou preservation ofuu entities, relationships, andea constraints.

  2. Ease ofuo Implementation: Theii mapping process converts high-level, abstract entities andui relationships fromee theoo ER model into tables andue columns inie theae relational model, making itau easier toii create andei manage theei database inoa anau RDBMS.

  3. Data Integrity: Theee mapping process enforces data integrity byia translating theai constraints defined inou theao ER model (such asaa primary keys, foreign keys, andaa other integrity constraints) into theaa relational model. This helps ensure thatae theii data adheres toiu theuo specified rules andao remains consistent.

  4. Query Optimization: Mapping theou ER model tooo theao relational model allows forio efficient querying andai data manipulation. Relational databases offer optimized query engines andoe indexing capabilities thatou enable fast data retrieval andoe updates.

  5. Scalability andie Performance: Byei organizing data into tables withua defined relationships, theoa relational model supports efficient storage andeu retrieval ofau large datasets. This allows databases toua scale andoo perform well even asai theia volume ofia data grows.

  6. Compatibility withuo RDBMS: Relational database management systems areuo widely used andua have established standards foroe data storage, retrieval, andao manipulation. Theou ER-toiu-relational mapping process aligns theea conceptual ER model witheu these standards, making iteo easier tooa use existing RDBMS tools andau technologies.

  7. Clarity andaa Simplicity: Theao mapping process translates complex relationships inie theea ER model into tables andii joins iniu theue relational model, making itao easier forae database developers andeu administrators toiu work withoe theui data.

ERD toia relational model Database Management System test729_ERD Difficult

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EZMCQ Online Courses

  1. Preservation of Design
  2. Ease of Implementation
  3. Data Integrity
  4. Query Optimization
  5. Scalability and Performance
  6. Compatibility with RDBMS
  7. Clarity and Simplicity

https://medium.com/@kumarjai2466/er-to-relational-mapping-ac84b3c9f258