【单选题】Two database users, Jack and Bill, are accessing the Certkiller STAFF table of the Certkiller DB database. When Jack modifies a value in the table, the new value is invisible to Bill. Which is the mo...
A.
The modified data are not available on disk.
B.
The modified data have been flushed out from memory.
C.
The modified rows of the Certkiller STAFF table have been locked.
D.
Jack has not committed the changes after modifying the value.
E.
Both users are accessing the database from two different machines.
【多选题】所得税核算采用应付税款法时,下列表述正确的有()
B.
当期确认的所得税费用即为当期计算的应交所得税
【多选题】所得税核算采用应付税款法时,正确的表述有( )。
B.
当期确认的所得税费用即为当期计算的应交所得税
【判断题】时间取样观察的第一个程序为制定观察量表。
【单选题】当列车晚点时,在付费区,对受影响的持单程票乘客,可按车票余值办理退票,或告知乘客可在( )日内到任意车站退票。
【单选题】Examine the following commands executed in your database: SQL> ALTER SESSION RECYCLEBIN=ON; Session altered SQL> CREATE TABLE emp TABLESPACE tbsfd AS SELECT * FROM hr.employees; Table created. Furt...
A.
The table is moved to the SYSAUX tablespace.
B.
The table is moved to the SYSTEM tablespace.
C.
The table is removed from the database permanently.
D.
The table is renamed and remains in the TBSFD tablespace.
【单选题】Two database users, Jack and Bill, are accessing the SupportCenter STAFF table of the SupportCenter DB database. When Jack modifies a value in the table, the new value is invisible to Bill. Which is t...
A.
The modified data are not available on disk.
B.
The modified data have been flushed out from memory.
C.
The modified rows of the SupportCenter STAFF table have been locked.
D.
Jack has not committed the changes after modifying the value.
E.
Both users are accessing the database from two different machines.
【单选题】右图为植物细胞减数第一次分裂中某时期示意图,相关叙述正确的是( )