You enable block change tracking. You issue the following command： BACKUP INCREMENTAL LEVEL 0 DATABASE； The next day，you issue the following command： BACKUP INCREMENTAL LEVEL 1 CUMULATIVE DATABASE； Which statement about the use of the change tracking file is true？（） RMAN reads the block change tracking file only when it performs the incremental level 0 backup.。 RMAN reads the block change tracking file when it performs both incremental backups.。 RMAN reads the block change tracking file only when it performs the incremental level 1 backup.。 RMAN does not read the block change tracking file when it performs either incremental backup.。
无形资产
Which three values are valid parameters for the DO_KEY built-in?（） ENTER 。 GO_ITEM 。 VALIDATE 。 EXIT_FORM 。 EXECUTE_QUERY。
Which two statements are true about the RMAN validate database command?（） It checks the database for intrablock corruptions.。 It can detect corrupt pfiles.。 It can detect corrupt spfiles.。 It checks the database for interblock corruptions.。 It can detect corrupt block change tracking files.。
按照《社会保险法》的规定，将原企业管理费中劳动保险费中的职工死亡丧葬补助费、抚恤费列入规费中的（） A.医疗保险费 。 B.生育保险费 。 C.工伤保险费 。 D.养老保险费。
Your database is functioning in NOARCHIVELOG mode. Your database contains 15 tablespaces. You want to use Recovery Manager （RMAN） to perform backups. Which two backups would you be able to perform when the database is being accessed by users？（）
