Join (SQL)

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Related lectures (32)

Page 2 of 4

Query Operators: Part 1

Explores query processing steps, physical plans, pipelined execution, and hashing for projections and joins.

Relational Algebra

Introduces relational query languages, focusing on algebra operators and query optimization.

System-R Optimizer: Query Optimization and Cost Estimation

Explores the System-R Optimizer, query optimization, cost estimation, join orderings, and cardinality challenges in database systems.

Query Optimization

Covers query optimization, from logical to physical plans, including query transformation and cost estimation.

Optimizing Join Operations: Challenges and Solutions

Explores optimizing join operations in distributed systems, addressing skewness and introducing the 1-Bucket-Theta algorithm.

OLAP Queries and Optimizations

Covers OLAP queries, examples of comparisons, ranking, and optimizations for query performance.

DBMS Principles and Operators

Covers the fundamentals of DBMS, relational algebra operators, and their importance in managing large datasets.

OLAP Queries: Aggregations, Cube Operator, and Optimizations

Explores OLAP queries, cube operator, super-aggregates, and optimization techniques.

Cost-based Query Optimization

Explores cost-based query optimization in database systems, covering cost estimation, selectivity estimation, and join cardinality.

Data Virtualization Demo: SmartDataLake

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