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  1. egf

    Join three tables with SUM

    After getting my MySQL installation up to snuff the subqueries work fine. Thanks for the suggestion. Out of curiosity I am still looking into the correct 'join' syntax.
  2. egf

    Join three tables with SUM

    I have three tables, a purchase order table, an items ordered table, and an invoice table. I want to select records from the purchase orders based on various criteria (eg vendor, or date, etc) and then get the SUM of the items ordered from the second table, and the SUM of the invoices (if any...
    • egf
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    • Replies: 5
    • Forum: MySQL

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