SQL> select * from v$osstat; STAT_NAME VALUE OSSTAT_ID COMMENTS CUM ---------------------------------------- ---------- ---------- ---------------------------------------------------------------- --- NUM_CPUS Number of active CPUs NO IDLE_TIME Time (…
Given a Weighted Directed Acyclic Graph and a source vertex in the graph, find the shortest paths from given source to all other vertices. For a general weighted graph, we can calculate single source shortest distances in O(VE) time using Bellman–For…
本文转自:慧都控件网 说到MariaDB,这个数据库算是MySQL的一个分支.现在非常的流行,很多地方都能看到它的身影.MariaDB作为一种新的数据库管理系统,在短时间内获得如此高的关注度.这也是Devart花了很大功夫让dbForge Studio for MySQL支持MariaDB的原因. 下面我们来看看这次版本跟新所涉及到的变化: 数据库连接的支持: MySQL 5.6 MySQL 5.7 MariaDB 5.5 MariaDB 10.0 支持MariaDB的虚拟列: Data Exp…