Definition
An operation in relational databases used to combine rows from two or more tables based on a related column between them. This is essential for retrieving data that spans multiple related tables.
Why it matters (in Poovi’s context)
Highlights a potential performance bottleneck in relational databases like MySQL when dealing with complex data retrieval, contrasting with MongoDB’s approach.
Key properties or components
- Combines data from multiple tables
- Relies on defined relationships
- Can be computationally intensive
Contradictions or debates
None.