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What type of database model organizes data in tables with rows and columns?
- a)Hierarchical
- b)Network
- c)Relational
- d)Object-Oriented
Correct answer is option 'C'. Can you explain this answer?
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What type of database model organizes data in tables with rows and col...
Understanding the Relational Database Model
The relational database model is a widely used architecture for organizing data efficiently. It structures data in a tabular format, which enhances accessibility and management.
Key Features of Relational Databases:
- Tables: Data is stored in tables, which consist of rows and columns. Each table represents a specific entity (e.g., customers, products).
- Rows: Each row in a table represents a unique record or instance of the entity. For example, in a customers table, each row would represent a different customer.
- Columns: Each column contains attributes or fields that describe the data in that row. For example, a customers table may have columns for customer ID, name, email, and address.
- Relationships: Relational databases allow for the establishment of relationships between tables through foreign keys, enabling complex queries across multiple tables.
Advantages of the Relational Model:
- Data Integrity: The structure ensures data integrity and consistency through the use of constraints and relationships.
- Flexibility: It is easier to modify the schema (structure) of a relational database without affecting existing data.
- Query Language: SQL (Structured Query Language) is used for managing and manipulating relational databases, making data retrieval and operations straightforward.
Conclusion:
The relational database model's organization of data into tables with rows and columns simplifies the process of data management, retrieval, and analysis, making it a fundamental choice in various applications across industries.
The relational database model is a widely used architecture for organizing data efficiently. It structures data in a tabular format, which enhances accessibility and management.
Key Features of Relational Databases:
- Tables: Data is stored in tables, which consist of rows and columns. Each table represents a specific entity (e.g., customers, products).
- Rows: Each row in a table represents a unique record or instance of the entity. For example, in a customers table, each row would represent a different customer.
- Columns: Each column contains attributes or fields that describe the data in that row. For example, a customers table may have columns for customer ID, name, email, and address.
- Relationships: Relational databases allow for the establishment of relationships between tables through foreign keys, enabling complex queries across multiple tables.
Advantages of the Relational Model:
- Data Integrity: The structure ensures data integrity and consistency through the use of constraints and relationships.
- Flexibility: It is easier to modify the schema (structure) of a relational database without affecting existing data.
- Query Language: SQL (Structured Query Language) is used for managing and manipulating relational databases, making data retrieval and operations straightforward.
Conclusion:
The relational database model's organization of data into tables with rows and columns simplifies the process of data management, retrieval, and analysis, making it a fundamental choice in various applications across industries.
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What type of database model organizes data in tables with rows and col...
Relational databases organize data in tables with rows and columns.
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