摘要:
概念: PostgreSQL (pronounced "post-gress-Q-L") is an open source relational database management system ( DBMS ) developed by a worldwide team of volunte 阅读全文
摘要:
数据库构架设计中主要有Shared Everthting、Shared Nothing、和Shared Disk: Shared Everthting:一般是针对单个主机,完全透明共享CPU/MEMORY/IO,并行处理能力是最差的,典型的代表SQLServer Shared Disk:各个处理单元 阅读全文