Database Schema For Notification System Similar to Facebooks...

Second normal form question...

I keep messing up 1NF...

Structuring a daily sales database...

Use data type uuid or varchar(36) for my UUID column?...

Polymorphic relationships vs separate tables per type...

functional dependencies involving the empty set...

how can i calculate mutual friends/followers efficiently?...

Questions with Regard to Organizing Checkbox (Multiple Answers) Choices into Two Columns...

Many-to-many relationship between objects of the same type...

What's the best way to store the days of the week an event takes place on in a relational databa...

Creating a simple Non repudiation/fraud proof system...

Share information between web site and API...

Use conditional constraint or normalize table?...

What is the ideal data type to use when storing latitude / longitude in a MySQL database?...

How to model teams with 3 (semi-)fixed positions, and search for same / different teams efficiently?...

Why primary key is (not) required on fact table in dimensional modelling?...

SQL Database Table relation based on multiple conditions...

what are the advantages of defining a foreign key...

Multiple components data storage in one table...

Database Tables For Multiple Roles...

How does MySQL store data?...

advantages and disadvantages of making a self-referencing table column a foreign key...

Best representation of an ordered list in a database?...

What first model or database?...

When to add a column vs adding a related table?...

add unique constraint in room database to multiple column...

What are the best practices for using a GUID as a primary key, specifically regarding performance?...

what is the convention for normalizing a table with many primary keys...

MySQL: How to keep history of an item?...