How to create a schema where there can be multiple user-defined attributes per customer?...

Generic DB Table...

datatype supplied by user for SQL field...

How to design a database for unkown amount of 'meta'-data...

Creating a Metatable table in a database...

What is best practice for this problem (different properties for different categories)?...

Optimal DB structure for additional fields entity...

How to define structure in a tag-based organization?...

what's the best implemention of client creatable and modifiable web forms in a relational databa...

Choosing a method to store user profiles?...