A.)SELECT交易所,avg(单价)FROM stock GRDER BY单价
B.)SELECT交易所,avg(单价)FROM stock ORDER BY单价
C.)SELECT交易所,avg(单价)FROM stock ORDER BY交易所
D.)SELECT交易所,avg(单价)FROM stock GROUP BY交易所
[单选题]求每个交易所的平均单价的SQL语句是A.SELECT交易所,avg(单价)FROM stock GROUP BY单价B.SELECT 交易所,avg(单价) FROM stock ORDER BY单价C.SELECT 交易所,avg(单价) FROM stock ORDER BY交易所D.SELECT 交易所,avg(单价) FROM stock GROUP BY交易所
[单选题]求每个交易所的平均单价的SQL语句是______。A.SELECT 交易所,avg(单价)FROM stock GROUP BY 单价B.SELECT 交易所,avg(单价)FROM stock ORDER BY 单价C.SELECT 交易所,avg(单价)FROM stock ORDER BY 交易所D.SELECT 交易所,avg(单价)FROM stock GROUP BY 交易所
[单选题]有如下SQL语句 SELECT交易所,avg(单价)as均价FROM stock; GROUP BY交易所INTO DBT temp 执行该语句后temp表中第2条记录的“均价”字段的内容是_______。
[单选题]有如下SQL语句 SELECT交易所,avg(单价)as均价FROM stock; GROUP BY 交易所 INTO DBF temp 执行该语句后temp表中第2条记录的“均价”字段的内容是______。A.7.48B.9.99C.11.73D.15.20
[单选题]求每个交易所的平均单价的SL语句是
[单选题]求每个终点的平均票价的SQL语句是:A)SELECT终点,avg(票价)FROM ticket GROUP BY票价B)SELECT终点,avg(票价)FROM ticket ORDER BY票价C)SELECT终点,avg(票价)FROM ticket ORDER BY终点D)SELECT终点,avg(票价)FROM ticket GROUP BY终点
[单选题]求每个终点的平均票价的SQL语句是A)SELECT终点,avg(票价)FROM ticket GROUP BY票价B)SELECT终点,avg(票价)FROM ticket ORDER BY票价C)SELECT终点,avg(票价)FROM ticket ORDER BY终点D)SELECT终点,avg(票价)FROM ticket GROUP BY终点
[单选题]有如下SQL语句SELECT 股票代码,avg(单价)as 均价 FROM stock;GROUP BY 交易所 INTO DBF temp执行该语句后,temp表中第二条记录的“均价”字段用SQL语句A)7.48 B)9.99 C)11.73 D)15.20
[单选题]有如下SQL语句 SELECT 股票代码,avg(单价) as 均价FROM stock; GROUP BY交易所INTO DBF temp 执行该语句后,temp表中第二条记录的“均价”字段的内容是A.7.48B.9.99C.11.73D.15.20
[单选题]A.期货交易所和B期货交易所合并成立C期货交易所,则关于A期货交易所和B期货交易所合并前的债权债务,下列说法中正确的是( )。A.自动消灭B.根据A、B两期货交易所商定的方案处理C.由C期货交易所继承D.由人民法院根据公平原则确定偿还方案