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New posts in database-design

how to model discount on items in a database?

Without joins on Google App Engine, does your data have to exist in one big table?

How do you keep your business rules DRY?

Would you use one or two tables for username and password?

table structure for personal messages

Best primary key for storing URLs

MongoDB database architecture [closed]

Inserting values into tables Oracle SQL

Add a SQL XOR Constraint between two nullable FK's

DATABASE DESIGN - Primary key for COUNTRY, CURRENCY int or varchar

Using Integer vs String for a "type" value (Database and class design)

Composite Clustered Index in SQL Server

Optimal database structure - 'wider' table with empty fields or greater number of tables?

Database Design Question - Categories / Subcategories

CouchDB create database per document type?

How to emulate tagged union in a database?

Are PostgreSQL VIEWS created newly each time they are queried against?

Would relational databases scale as well (or better) than their NoSQL counterparts if we drop the relationships?

Why would index nodes or an indexed property be better in a graph database?

Database Structure involving dynamic fields