need double join query or not??

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  • dikkuuhh@niemaauwe.nl

    need double join query or not??

    At the moment i have this query:

    SELECT number, COUNT( * ) as count ' .
    FROM visit ' .
    RIGHT JOIN visitHit ON ( visitHit.visitI d = visit.id ) AND ( type
    = "link" )
    WHERE ( brochureId = 57 )
    GROUP BY number
    ORDER BY number

    I get a list of the numbers of the links a have with the number of
    times it's clicked.

    Now i don't wanna know this but the URL of the link, that's in another
    table (pageElement.li nk)

    Do i need a double join query or not? Can somebody help me out with an
    example?

  • Martin Mandl - m2m tech support

    #2
    Re: need double join query or not??

    On May 2, 11:09 am, dikku...@niemaa uwe.nl wrote:
    At the moment i have this query:
    >
    SELECT number, COUNT( * ) as count ' .
    FROM visit ' .
    RIGHT JOIN visitHit ON ( visitHit.visitI d = visit.id ) AND ( type
    = "link" )
    WHERE ( brochureId = 57 )
    GROUP BY number
    ORDER BY number
    >
    I get a list of the numbers of the links a have with the number of
    times it's clicked.
    >
    Now i don't wanna know this but the URL of the link, that's in another
    table (pageElement.li nk)
    >
    Do i need a double join query or not? Can somebody help me out with an
    example?
    Is there a real reason you need join already for your first request?

    select v.number, count(v.*) as count
    from visit v, visitHit, h
    where v.brochureid = 57 and h.visitId = v.id and h.type = 'link'
    group by v.number
    order by v.number

    (remark: h.type could also be v.type depends on your data base)

    Depending on your database, you might just another table and some more
    where statements?

    Good luck
    Martin

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