YoucreatedtheORDERStableinyourdatabasebyusingthefollowingcode:
SQL>CREATETABLEORDERS(ORDER_DATETIMESTAMP(0)WITHTIMEZONE);
Then,youinserteddataintheORDERStableandsaveditbyissuingthefollowingstatements:SQL>INSERTINTOORDERSVALUES(’18-AUG-0010:26:44PMAmerica/New_York’);
SQL>INSERTINTOORDERSVALUES(’23-AUG-0212:46:34PMAmerica/New_York’);
SQL>COMMIT;
Next,youissuedthefollowingstatementtochangethetimezoneforthedatabase:
SQL>ALTERDATABASESETTIME_ZONE=’Europe/London’;
Whatwillbetheresultofexecutingtheabovestatement?()
如果市场达到(),则即使内幕人士也无法通过交易获得超额收益。
A. 弱有效
B. 半强有效
C. 强有效
D. 无效率
准性生殖(parasexuality)(名词解释)