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

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

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

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

求每个单位的平均基本工资的SQL语句是()。

A．SELECT 单位,avg(基本工资) FROM zg GROUP BY基本工资

B．SELECT 单位,avg(基本工资) FROM zg ORDER BY基本工资

C．SELECT 单位,avg(基本工资) FROM zg ORDER BY单位

D．SELECT 单位,avg(基本工资) FROM zg GROUP BY单位

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 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

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

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

有如下SQL语句： CREATE VIEW view ticket AS SELECT 始发点AS名称，票价FROM ticket 执行该语句后产生的视图含有的字段名是

A．始发点、票价

B．名称、票价

C．名称、票价、终点

D．始发点、票价、终点