The ATAPI specification defines a command called IDLE IMMEDIATE that idles the HDD and retracts the disk heads to prevent them from hitting the platters.
Nevertheless, to change a DB CFG parameter online, a connection to the database is mandatory, and the UPDATE DB CFG command must include the option IMMEDIATE, as shown in Listing 15.
尽管如此,要在线改变DB CFG参数,对数据库的连接是强制性的,而且UPDATE DB CFG命令必须包含IMMEDIATE选项,如清单15所示。
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The following command causes a user logging in from a network access server to have immediate access to EXEC commands.