db-schema

I was wondering how one would represent relationships in Aerospike ? I realize it's a Key-Value store but is there an example that can be given? For example: If have a user in the system and I want to get a list of Thing records associated with that user. Couple of quick ideas: 1- Have each user be a record (equivalent of a row for conventional RDBMS) with multiple bins, each bin having the Primary Key of a 'Thing' Record in it. You can find more details about Aerospike's data model here . This should work well if the number of Things associated to a user is fairly low (under 100 typically). 2

I'm currently developing a member administration for a local association here and I'm developing the database schema at the moment. I'd like to share it with you to improve it and give other an example of a Role Based Access Model (RBAC). I'd appreciate any constructive criticism especially about the relationships I used between the tables. Link to highres: http://i.stack.imgur.com/WG3Vz.png Heres the schema: How it works: I'm mapping existing clients (actually members of the association) from an external application into my administration application. (clients table) The association is

I need to store chat conversations in a database schema. The way I would use this database is I would post chats on a website. Each chat would not be more than about 20 responses. Can someone please suggest a schema for this? Here's a start using MySQL Workbench PNG export of ERD And the create script SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0; SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0; SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='TRADITIONAL'; CREATE SCHEMA IF NOT EXISTS `chats` DEFAULT CHARACTER SET utf8 COLLATE default collation ; -- --------------------