作者:iamlaosong Oracle暂时表空间主要用来做查询和存放一些缓冲区数据. 暂时表空间消耗的主要原因是须要对查询的中间结果进行排序.暂时表空间的主要作用: 索引create或rebuild Order by 或 group by Distinct 操作 Union 或 intersect 或 minus Sort-merge joins analyze 重新启动数据库能够释放暂时表空间.假设不能重新启动实例,而一直保持问题sql语句的运行,temp表空间会一直增长.即使重建了暂时表空…
Given a linked list, swap every two adjacent nodes and return its head. Example: Given 1->2->3->4, you should return the list as 2->1->4->3. Note: Your algorithm should use only constant extra space. You may not modify the values in the…