relational
http://www.docstoc.com/docs/2996433/Hadoop-and-HBase-vs-RDBMS
http://redmonk.com/sogrady/2009/11/03/amazon-rds-and-the-future-of-mysql/
http://www.eweek.com/c/a/Cloud-Computing/Amazon-Launches-Relational-Database-for-the-Cloud-865321/
nosql
http://oss-tw.blogspot.com/2010/04/hbase-vs-cassandra.html
http://inspire.twgg.org/c/internet/host-setting/written-discussion-nosql-database.html
http://www.javaworld.com.tw/roller/ingramchen/entry/consistency
http://zh.wikipedia.org/zh-tw/Cassandra
??
http://db.apache.org/derby/index.html
http://cloudstoragestrategy.com/cloud-database/
http://www.hellodba.net/2010/02/cassandra.html
hbase vs cassandra
http://www.roadtofailure.com/2009/10/29/hbase-vs-cassandra-nosql-battle/
從比較優劣的角度來描述雙方的優缺點，安裝、使用性、架構等等