RE: [SQLDownUnder] INNNER JOIN?


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    • From: Wheat, Mitch
    • Subject: RE: [SQLDownUnder] INNNER JOIN?
    • Date: Wed, 09 Mar 2005 20:27:35 +1100

    Title: RE: [SQLDownUnder] INNNER JOIN?

    The same applies to SQL Server. 'NOT EXISTS' is preferable to 'NOT IN' where applicable.

    Regards,
    Mitch


    -----Original Message-----
    From: Junying Xue [mailto:xuej@xxxxxxxxxxxxxx]
    Sent: Wednesday, 9 March 2005 10:20 AM
    To: SQLDownUnder@xxxxxxxxxxxxxxxxxxxxxx
    Subject: RE: [SQLDownUnder] INNNER JOIN?


    I know for sure that there is a performance difference between "not in" and
    "not exists" in Oracle.  How about in SQL Server?

    -----Original Message-----
    From: SQLDownUnderList@xxxxxxxxxxxxxxxxxxxxxx
    [mailto:SQLDownUnderList@xxxxxxxxxxxxxxxxxxxxxx] On Behalf Of William Luu
    Sent: Wednesday, 9 March 2005 11:25 AM
    To: SQLDownUnder@xxxxxxxxxxxxxxxxxxxxxx
    Subject: Re: [SQLDownUnder] INNNER JOIN?

    Thanks Aaron, that worked.

    On Wed, 9 Mar 2005 11:16:06 +1100, Aaron Bull <aaron@xxxxxxxxxxxx> wrote:
    <snip />
    > select ItemID
    > from Items
    > where
    > ItemID not in (select distinct FK_ItemID from Products)
    >
    > Cheers,
    >
    > Aaron
    >


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