Oracle认证考试单项选择题每日一练(2019.12.29)

A. Issue the grant command from the SYS user （or equivalent） of the target database.
B. Issue the grant command from the SYS user （or equivalent） of the recovery-catalog database.
C. Issue the grant command from the recovery catalog-owning schema user account in the recovery catalog.
D. Issue the grant command from RMAN when connected to the recovery catalog-owning schema.
E. Issue the grant command from RMAN when connected to the target database.

A.Mysqlaccess
B.Mysqldump
C.Mysqlshow
D.Mysqlslow
E.Mysqldumpslow

A.Compilation fails due to an error in line 23.
B.Compilation fails due to an error in line 29.
C.A ClassCastException occurs in line 29.
D.A ClassCastException occurs in line 31.
E. The value of all four objects prints in natural order.

A.ALLOCATE CHANNEL
B.CREATE CHANNEL
C.CHANNEL ALLOCATE
D.CREATE LINK

A.An index used to join two bitmap indexes on a table.
B.A bitmap index created for the join of two or more tables.
C.A bitmap index created on the join of two or more indexes.
D.A bitmap index created on the join of two or more indexed-organized tables.