Advanced Database · Unit 5 · 8 hrs
Advanced Database Models, Systems, and Applications
Exam-focused notes for Advanced Database Models, Systems, and Applications (Advanced Database, CSC475): what the TU syllabus asks and how it has actually been tested, with 4 solved past questions from this unit.
What this unit covers
- Active Database Concepts and Triggers
- Temporal Database Concepts
- Spatial Database Concepts
- Multimedia Database Concepts
- Deductive Database Concepts
- Introduction to Information Retrieval and Web Search
Active Database Concepts and Triggers
What are triggers? What are the uses of triggers? [5]
A trigger is a special type of stored procedure (or rule) in a database that is automatically executed (fired) in response to certain events occurring on a specified table or view. Triggers are a core component of active databases, where the database itself...
Full solved answer →What is the concept of active database? What are triggers? [5]
An active database is a database system that goes beyond the traditional role of data storage and retrieval by incorporating active behaviour. It enables the database to react and respond to events and triggers in real-time, rather than passively waiting fo...
Full solved answer →Spatial Database Concepts
Why do we need spatial databases? What are common types of analysis for spatial data? [5]
A spatial database is a database that is optimized to store and query data related to objects in space, including points, lines, polygons, and geographic features (maps, locations, regions). We need spatial databases for the following reasons: - Traditional...
Full solved answer →What is spatial database? Explain the concept of trigger with an example. [5]
--- A spatial database is a database that is enhanced to store and access spatial data, or data that defines a geometric shape. These data are often associated with: - Geographic locations and features - Constructed features like cities, roads, buildings Da...
Full solved answer →Make Unit 5 stick
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