1. BACKUP... VALIDATE(在备份之前检查将要备份的文件的完整性和正确性)Using the RMAN BACKUP... VALIDATE command causes RMAN to read all of the specified database files that would be input for a specific backup task, without
next和hasnextGiven a List of integers and we have to traverse, print all its element using next() and hasNext() methods. 给定一个整数列表,我们必须遍历,使用next()和hasNext()方法打印其所有元素。 什么是hasNex()和next()方法? (What are ...