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  2. Query optimization - Wikipedia

    en.wikipedia.org/wiki/Query_optimization

    The performance of a query plan is determined largely by the order in which the tables are joined. For example, when joining 3 tables A, B, C of size 10 rows, 10,000 rows, and 1,000,000 rows, respectively, a query plan that joins B and C first can take several orders-of-magnitude more time to execute than one that joins A and C first.

  3. Join and meet - Wikipedia

    en.wikipedia.org/wiki/Join_and_meet

    In general, the join and meet of a subset of a partially ordered set need not exist. Join and meet are dual to one another with respect to order inversion. A partially ordered set in which all pairs have a join is a join-semilattice. Dually, a partially ordered set in which all pairs have a meet is a meet-semilattice.

  4. Join (SQL) - Wikipedia

    en.wikipedia.org/wiki/Join_(SQL)

    An inner join (or join) requires each row in the two joined tables to have matching column values, and is a commonly used join operation in applications but should not be assumed to be the best choice in all situations. Inner join creates a new result table by combining column values of two tables (A and B) based upon the join-predicate.

  5. Correlated subquery - Wikipedia

    en.wikipedia.org/wiki/Correlated_subquery

    A GPU acceleration approach is used to significantly improve the performance of the nested method of high algorithmic complexity by exploiting massive parallelism and device memory locality on GPU, [10] which accomplishes the goal for both general-purpose software design and implementation and high performance in subquery processing.

  6. Troubleshooting AOL Desktop Gold

    help.aol.com/articles/aol-desktop-troubleshooting

    • If the issue still exists, proceed to the next step. If the issue still exists, proceed to the next step. • Open a browser. • Go to beta.aol.com • Click on AOL Desktop • On the right of the page you will see the latest revision number. • Compare that version to what is listed when you click About AOL from the Help menu.

  7. Semilattice - Wikipedia

    en.wikipedia.org/wiki/Semilattice

    A join-semilattice is distributive if for all a, b, and x with x ≤ a ∨ b there exist a' ≤ a and b' ≤ b such that x = a' ∨ b' . Distributive meet-semilattices are defined dually. These definitions are justified by the fact that any distributive join-semilattice in which binary meets exist is a distributive lattice.

  8. The Wonder Oven is kitchen editor-approved: And it's $20 off ...

    www.aol.com/the-wonder-oven-is-kitchen-editor...

    The Wonder Oven is a kitchen marvel — it can bake, it can fry, it can steam. And during Presidents' Day, it's $20 off. Here's why we love it.

  9. Airlines desperately want more planes — but Boeing and Airbus ...

    www.aol.com/airlines-desperately-want-more...

    Boeing's quality issues and Airbus' supply chain problems have created a global jet shortage. American Airlines cut routes amid delayed 787s, while Ryanair lowered its capacity outlook for 2025.