nvogel

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nvogel questions

Natural join for dataframes
What is the difference between a Graph Database and a Network Database?

nvogel answers

Why does an SQL table have multiple primary keys?
Does storing aggregated data go against database normalization?
DBMS All keys combined confusion
Behavior of SQL OR and AND operator
Normalization: Is it considered Normal Form compliant to split static, numeric values like a year into their own table?
ORDER BY subquery and ROWNUM goes against relational philosophy?
What are the advantages of explicitly setting up relationships inside of a database
A SQL Server function to generate of sequential numbers
Database design for ETL - Surrogate vs natural key
why must a primary key be minimal?