mysql练习----Self join

时间：2020-11-28 00:56:15

stops(id, name)

route(num,company,pos, stop)

stops	route
id	num
name	company
	pos
	stop

mysql练习----Self join

mysql练习----Self join

mysql练习----Self join

mysql练习----Self join

mysql练习----Self join

mysql练习----Self join

mysql练习----Self join

mysql练习----Self join

mysql练习----Self join

mysql练习----Self join

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