Query optimization

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Computer engineering
Databases
Relational databases

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Related lectures (32)

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Iterator Model: Query Processing in Database Systems

Explores the iterator model in query processing for database systems, focusing on tuple-at-a-time execution and interpreted expression evaluation.

Compilation: Code Generation and Performance Optimization

Explores code generation, performance optimization, and compilation trade-offs in DBMS.

Query Fusion, Nested Queries

Covers query fusion, nested queries, and SQL operators in a geographical context.

Relational Algebra Equivalences: Optimization Techniques

Explores relational algebra equivalences for optimizing query performance through efficient tuple generation and join operations.

Views: Simplifying SQL Queries

Explores views in SQL, covering creation, materialization, maintenance, cube building, and top-k queries optimizations.

Real-time Update of Column Store on Disk

Explores challenges and solutions for real-time updates on large column stores on disk, focusing on snapshot isolation and query performance.

Data Warehouses and Decision Support Systems

Explores data warehouses, decision support systems, OLAP, data lakes, multidimensional data models, and query optimizations.

Adaptive Sharing in Analytical Databases

Explores adaptive sharing in analytical databases to reduce costs and improve efficiency through novel execution paradigms.

Index Tuning with Multi-armed Bandits

Explores using Multi-armed bandits for efficient index tuning in databases, showcasing benefits over traditional methods.

Data Virtualization Demo: SmartDataLake

Showcases a demo on adaptive data virtualization in SmartDataLake, focusing on assembling company profiles and executing join queries across datasets.