单项选择题
A.The database user OPS$SKD will be able to administer the database.
B.The authentication detail for the database user OPS$SKD is recorded in the password file.
C.The local operating system user SKD will be able to access the database instance without specifying theusername and password.
D.The database user OPS$SKD has to login with the password of the local operating system user SKD toaccess the database instance.
单项选择题 WhydoesperformancedegradewhenmanyUPDATE，INSERT，orDELETEstatementsareissuedonatablethathasanassociatedBitmapindex（）
单项选择题 View the Exhibit to examine the output of the DBA_OUTSTANDING_ALERTS view. After 30 minutes, youexecuted the following command: SQL> SELECT reason,metric_value FROM dba_outstanding_alerts; REASON METRIC_VALUE------------------------------ ---------------------- Tablespace [TEST] is [28 perce 28.125 nt] fullWhat could be the reason for the elimination of the other rows in the output（）
多项选择题 Whichstatementsaretrueregardingatablespace（）