How to set up Primary Keys in a Relation?...

Comment system design...

What is the difference between Views and Materialized Views in Oracle?...

operator update with math operations in relational alegebra...

Avoiding duplicates in a reflexive many to many relationship where direction is irrelevant...

Project and restrict in relational algebra...

Relational Algebra rule for column transformation...

Display / Logic issue, Many-to-many, how to display?...

What is the formal difference between relational and multidimensional databases?...

Relational Data Model for Double-Entry Accounting...

Circular Dependency error in NestJS TypeORM Relations with Entity Decorator...

Will multiple calls to `now()` in a single PostgreSQL query always give the same result?...

How to avoid duplicate data in one-to-many relationship...

What is the difference between primary, unique and foreign key constraints, and indexes?...

What HTTP status code for Patch that may create and/or delete entries from nested table...

What relation does this attribute belong to, and why? Does ANDing these give the Cartesian product o...

Exist and Not Exists Query Misunderstanding?...

Options for eliminating NULLable columns from a DB model (in order to avoid SQL's three-valued l...

PostgreSQL Foreign Key syntax...

Same Table value selection from same clients...

Databases with Foreign Keys: Good way to picture forward vs. backward relationship?...

Does "tuples are not necessarily distinct" imply they are equal? How do I show whether thi...

How to create relationships in MySQL...

What are the scalability limitations of relational databases?...

When to use MongoDB...

How to structure and query an appointment system based on time slots where each bookable entity has ...

One to one relationship in MySQL and cascade delete...

How do databases maintain results if another query edits those results...

How can I update a large table slowly?...

Meaning of hashtag in a relational schema...