Cursor Holdability support
Improved Error Messages
改进了稳定性和性能
引擎整体性能
In CUBRID 9.0 we have significantly improved the overall performance of the CUBRID Engine as well as its stability. The throughput and response time of CUBRID 9.0 have been improved for more than 300% when compared to a previous version.
Figure 1: The number of read/write requests per second of SysBench benchmark.
Figure 2: The average execution time per request of SysBench benchmark.
Figure 3: The accumulated number of transactions of SysBench benchmark.
提高读取性能
To measure the effectiveness of new Indexing types and optimizations on READ performance, we have run a basic performance test on CUBRID 8.4.1 and 9.0. SELECT performance in the new version has increased for more than 160% while the performance of WRITE operations is remained on the same level.
Figure 4: Performance Comparison between R4.1 Patch 6 and 9.0 Beta (Linux 32-bit).
改进了稳定性和性能的分区
In CUBRID 9.0 we have fundamentally enhanced the Partitioning feature for better stability and performance. In addition, we have added support for PROMOTE statement which allows users to promote a specific partition from a partitioned table to a general table.
改进的HA稳定性和操作的便利性
HA is the flagship feature in CUBRID since version 8.2.0. In this new version we have fixed many stability issues in CUBRID HA. This version also provides a separate control for the HA management process and easier dynamic addition and deletion of nodes in the HA management process.
So CUBRID 9.0 is the best RDBMS we have ever released so far with tons of valuable features, significantly increased performance, and native support for database sharding. We have updated most of APIs that you can use to connect to CUBRID 9.0. You can download PHP, PDO, Python, Ruby, Perl, ADO.NET, OLEDB, ODBC, JDBC, C, and Node.js drivers from http://www.cubrid.org/downloads.
For more information about new features and improvements in CUBRID 9.0, refer to Release Notes.
If you have questions, feel free to ask on our dedicated Q&A site, forum, 推ter, 非死book, Google+, #cubrid IRC channel, or contact us by email. We will be glad to answer you!
下面是CUBRID的简介：
CUBRID 是一个全面开源，且完全免费的关系数据库管理系统。CUBRID为高效执行Web应用进行了高度优化，特别是需要处理大数据量和高并发请求的复杂商务服务。通过提供独特的最优化特性，CUBRID可以支持更多的并发请求，更少的响应时间。
CUBRID这个名称，实际上是两个单词的组合:"Cube"(立方体)和"Bride"(桥梁)。对CUBRID而言，"Bride"代表"data bridge"(数据桥)，而"Cube"代表密封盒子，可以为放在其中的数据提供安全。因此，CUBRID代表可以为机密信息提供安全保障。
CUBRID的服务器和官方程序库是使用C/C++开发的，而数据库管理工具的CUBRID Manager则是使用Java开发的。CUBRID支持Linux和Windows操作系统，并且提供JDBC、PHP、ODBC、C、Ruby和Python等相关API。
CUBRID被韩国IT业的领头企业NHN公司大量的使用，该公司部署了超过一万台CUBRID服务器，看来它的确和MySQL有得一比。
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