- What is OLAP and what is the difference between OLAP and OLTP?
- What is ETL?
- What are fact tables and dimension tables?
- Why would we denormalize data in data warehouses?
- What is the difference between dimensions and measures?
- What is the purpose of partitioning?
- What is a partition key?
- Which partitioning schemes are supported by PostgreSQL? What are the typical use cases for each of them?
- How do we implement sub-partitioning?
- How do we utilize multiple CPU cores of the database server when executing a query?
- What are index-only scans?
- Is there a way to enable index-only scans for a field without building an index on that field?
Germany
Slovakia
Canada
Brazil
Singapore
Hungary
Philippines
Mexico
Thailand
Ukraine
Luxembourg
Estonia
Lithuania
Norway
Chile
United States
Great Britain
India
Spain
South Korea
Ecuador
Colombia
Taiwan
Switzerland
Indonesia
Cyprus
Denmark
Finland
Poland
Malta
Czechia
New Zealand
Austria
Turkey
France
Sweden
Italy
Egypt
Belgium
Portugal
Slovenia
Ireland
Romania
Greece
Argentina
Malaysia
South Africa
Netherlands
Bulgaria
Latvia
Australia
Japan
Russia