reaanb questions

reaanb answers

• Which one is ER diagram
• How would storing XML in a relational database violate Normalization Principles?
• What is relvar - relational variable?
• ERD 3 tables in 1 relationship
• Can an entity have multiple primary keys? ER Model
• Why we don't draw ER for NoSQL databses
• Deciphering Database ER Diagram for questionnaire
• What data type should I use for a 'duration' attribute?
• Convert ternary relationship to binary in E/R model
• How to show composite keys in Chen E-R Diagram