Shahid ullah Computer science
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A database is a collection of organized data that is stored in a way that allows for efficient retrieval and manipulation. Here are some key aspects of databases:

1. Data storage: Databases store data in a structured format, using tables, fields, and records.

2. Data retrieval: Databases allow data to be queried and retrieved using commands like SELECT, INSERT, UPDATE, and DELETE.

3. Data manipulation: Databases enable data to be added, modified, or deleted as needed.

4. Data consistency: Databases enforce data integrity and consistency through constraints and rules.

5. Data security: Databases have user authentication and access control to ensure secure data access.

6. Data scalability: Databases can handle large amounts of data and scale as needed.

Types of databases:

1. Relational databases (RDBMS): Use tables and relationships (e.g., MySQL, PostgreSQL).

2. NoSQL databases: Use key-value pairs, documents, or graphs (e.g., MongoDB, Cassandra).

3. Graph databases: Designed for storing and querying graph structures (e.g., Neo4j).

4. Time-series databases: Optimized for storing and retrieving time-stamped data (e.g., InfluxDB).

5. Cloud databases: Hosted in the cloud, offering scalability and flexibility (e.g., AWS Aurora, Google Cloud SQL).

Database design involves:

1. Conceptual design: Defining the database structure and relationships.

2. Logical design: Translating the conceptual design into a database schema.

3. Physical design: Optimizing the database for

Subjects

  • Database Grade 1-Grade 5

Experience

No experience mentioned.

Education

  • Mcs computer science (Jul, 2017–Jul, 2019) from Bannu University of Science and Technology–scored 5

Fee details

    Rs50–100/hour (US$0.18–0.36/hour)

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