Lec-112: View in Database | Oracle, SQL Server Views | Types of Views
Gate Smashers・2 minutes read
Views in databases are virtual tables created from stored queries, allowing for data access restriction and simplifying complex queries. Understanding views in databases is crucial for interviews and practical application in database management.
Insights
- Views in databases are virtual tables created from stored queries, offering a simplified way to access and manipulate data without taking up physical space like regular tables.
- Materialized views, a type of view, serve as snapshots of data, aiding in advanced data processing tasks such as data warehousing and data mining, showcasing the versatility and utility of database views beyond basic querying functions.
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Recent questions
What are database views?
Virtual tables created from stored queries.
How do views benefit database management?
Simplify complex queries and enhance data security.
What is the difference between materialized views and regular views?
Materialized views store data snapshots, while regular views display live data.
How do views contribute to data access restriction?
By presenting different data perspectives based on user roles.
Why are views essential for database interviews?
Understanding SQL basics and data management principles.
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