摘要:
SQL> select * from nls_database_parameters where parameter='NLS_CHARACTERSET';SQL> shutdown immediateSQL> startup mountSQL> alter system enable restricted session;SQL> show parameter job_queue_processes;SQL> alter system set job_queue_processes=0;SQL> alter database open 阅读全文
摘要:
public List removeDuplicateWithOrder(List list) { Set set = new HashSet(); List newList = new ArrayList(); for (Iterator iter = list.iterator(); iter.hasNext();) { Object element = iter.next(); if (set.add(element)) newList.add(element); ... 阅读全文