nvogel

nvogel has asked 2 questions and find answers to 128 problems.

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nvogel questions

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

nvogel answers

Reducing repeated information in database design
Mapping a 1:1 relationship on a relational schema
What is the Postgres MD5() equivalent in SQL Servrer?
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