SQL help - trying to do a 3 table join

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#1   SQL help - trying to do a 3 table join
mearnheart
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ok, here goes....

Table employee has columns id, name
Table ticket has columns id, emp_id, cust_id, office, issue_date
Table customer has columns id, name

here is what I'm trying to do:
SELECT *
FROM ticket.a, employee.b, customer.c
WHERE a.office = 'Dallas'
AND a.cust_id = 75
AND a.emp_id = b.id
AND a.cust_id = c.id
AND a.emp_id = 144 OR a.emp_id = 18
ORDER BY a.tech_id, a.cust_id, a.issue_date

yea, I think that should do what I need......

its returning like 136,000+ records....and I'm pretty sure thats not right.....theres only ll records in ticket, 74 records in customers, and 205 in employee.....

TIA,
Mike



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#2   re: SQL help - trying to do a 3 table join
Kelly_Hero
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Instead of ticket.a, employee.b and customer.c, try ticket AS a, employee AS b, customer AS c.

You are also trying to order by a.tech_id, but you don't have a field listed as tech_id in the ticket table.

That may not solve the whole problem, but it should get you a little closer, I hope.



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#3   re: SQL help - trying to do a 3 table join
minirich
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It has nothing to do with the ordering its because you have

select * from ....
you get for every table and every row in that table and their combinations a result row
you have to do
select ticket.* from ...
or another table prefix to limit the result count.



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#4   re: SQL help - trying to do a 3 table join
mearnheart
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yes, thank you very much.....

mike



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