1. 在改变数据库文件的大小时,书上说:
ALTER DATABASE [database]
DATAFILE ’filename’[, ’filename’]...
RESIZE integer[K|M]
where: integer is the absolute size, in bytes, of the resulting data file
If there are database objects stored above the specified size, then the data file size is decreased only to the last block of the last objects in the data file.
最后这句话是什么意思?
2. 如何理解教材10-15中的这句话:
“A rollback segment is only online until the instance is shut down.”
我本来以为指的是 rollback segment 不能被 offline呢!
谢谢!