常用数据库
一，关系数据库管理系统（Relational Database Management System：RDBMS）
1. IBM 的DB2
https://www.ibm.com/analytics/us/en/technology/db2/
http://www.db2china.net/
http://www.yiibai.com/db2/
2. Oracle
https://www.oracle.com/index.html
http://bbs.csdn.net/forums/Oracle/
http://www.linuxidc.com/topicnews.aspx?tid=12
3. Informix
http://baike.baidu.com/link?url=8SJPof1sucXfCyOfr_8EiyUKxFMxt2RODVaj5Rqjx-mQ0ZvLGLehkft0TuFEoRreyymvEt_f6sESTkyetXJnNK
https://www.ibm.com/analytics/us/en/technology/informix/
http://www.informixchina.net/
http://www.oschina.net/news/56479/ibm-saled-informix
http://www.csdn.net/tag/informix
4. Sybase
http://www.sybasebbs.com/
http://infocenter.sybase.com/help/index.jsp
http://baike.baidu.com/link?url=Nm8QDohUYiZyR14da5NquiWDnGJHgHYSheUe6t1DeS6UfWrPEx50kU0JbHZmrKRjs4QESikIxMYiaxQJNlLei_
5. SQL Server
http://baike.baidu.com/link?url=c67WyqtIl_ew6yHeATioavWN8OLQjuP2XErUyaBCirD1t63q_dgc69YNrmrYlXaDG-4HdV7mLva4eOG0Fih7EeKRV3ef9QlRex8TJm146dpjz6jkyB58gjHZ8kcpFYK1_lEU1Cn3_ZMS0_9QBDnE8dy4_pHzs6rbOgoUfUGujU_
http://database.51cto.com/art/200511/12708.htm
https://docs.microsoft.com/zh-cn/sql/sql-server/sql-server-technical-documentation
6. PostgreSQL
http://baike.baidu.com/link?url=CRukuWapVoe5JJJqlCLHygiEUXhPIcCQvOA3QCqOBZLmH6C-plX4K3v3IV76H2k44bkCwEWA566jo147fEU_Ef6pdN2emZuAGdHYjagjxEe
https://www.postgresql.org/
http://www.postgres.cn/index.php/home
http://blog.chinaunix.net/uid-354915-id-3498734.html
7.mySQL
www.mysql.com
https://dev.mysql.com/doc/
http://www.mysqlpub.com/
http://www.runoob.com/mysql/mysql-tutorial.html
8.Access数据库
http://baike.baidu.com/link?url=Y7krjQmw_h06phXLqRlyn3m1GFhE9VbIEvweMgXCW7UEItSY9F0DYvuznSfL6w3L8dEXydfhlNhyPbe8vv7Yrc-mRWhEAvEMafh8OMdHnBGD9og_G7QD2r6J2yUuy-YgLeo4KDOId2NlQJFLfDr9i4dkTVqpeHm7yUDx0wKRibC
http://blog.csdn.net/narsh/article/details/5295727
http://www.cnblogs.com/zyw-205520/p/3149853.html
9.FoxPro数据库
http://baike.baidu.com/link?url=A_DlUoqgQW_cZWHH_520VPkVlP1a6GrGjgmmUAGNOQgs6SkG8SGp52KnBBmBUgEW6aWXc9aF0ceVVmX5mp4ZC_
http://xiaobo.iteye.com/blog/243687
二，非关系型数据库(NoSQL=Not Only SQL )
1.Redis
https://redis.io/
http://www.redis.net.cn/
http://www.redis.cn/
http://www.runoob.com/redis/redis-tutorial.html
2.HBase
http://hbase.apache.org/
http://hbase.apache.org/book.html
http://www.yiibai.com/hbase/
http://blog.csdn.net/frankiewang008/article/details/41965543
3.MongoDb
https://www.mongodb.com/
http://www.mongoing.com/
http://www.runoob.com/mongodb/mongodb-tutorial.html
http://www.cnblogs.com/huangxincheng/archive/2012/02/18/2356595.html
4.Neo4J
https://neo4j.com/
http://www.neo4j.com.cn/
http://agapple.iteye.com/blog/1128400
http://blog.csdn.net/dyllove98/article/details/8635965
参考资料：
http://blog.csdn.net/mr_zy58/article/details/24579585
https://www.zhihu.com/question/36431635?sort=created
http://www.cnblogs.com/vajoy/p/5471308.html
http://baike.baidu.com/link?url=Lp5o26ZvPS52hAiVylwOp3r3xQ2w-P-XQ7y1AVAk5WHSONFXkaILYBYTw4mfVFL3h14bmUHh6R81PG7mBfka9_
