单项选择题
A.The SGA_TARGET is a static parameter.
B.The instance is started， but the database is not yet open.
C.The server parameter file （SPFILE） was used to start the instance.
D.The SGA_TARGET parameter does not have any effect on the database instance until theSGA_MAX_SIZE parameter is specified
多项选择题 You are managing an Oracle Database 11g database. The database is open， and you plan to perform Recovery Manager （RMAN） backups. Which three statements are true about these backups（）
单项选择题 In your production database， data manipulation language （DML） operations are executed on the SALES table.You have noticed some dubious values in the SALES table during the last few days. You are able to track users， actions taken， and the time of the action for this particular period but the changes in data are not tracked.You decide to keep track of both the old data and new data in the table along with the user information. Whataction would you take to achieve this task（）
单项选择题 The job to gather optimizer statistics for objects runs as part of the automatic maintenance window in yourdatabase instance. At a certain point of time， the maintenance window closes before the statistics are gatheredfor all objects. Which statement is true in this scenario（）
