mySQL你如何做一个连接链？

Question

Hi! I am trying to figure out how to do a join in multiple steps in the same line of code. This is what i got so far, but I get an error 1064.

select * from jbcity
join jbsupplier on jbsupplier.city = jbcity.name where jbcity.state = "Mass"
join jbsupply on jbsupply.supplier = jbsupplier.id
join jbparts  on jbparts.id = jbsupply.part;

Answer 1

Try this:

select * from jbcity
join jbsupplier on jbsupplier.city = jbcity.name 
join jbsupply on jbsupply.supplier = jbsupplier.id
join jbparts  on jbparts.id = jbsupply.part where jbcity.state = 'Mass';