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  2. Skip list - Wikipedia

    en.wikipedia.org/wiki/Skip_list

    A schematic picture of the skip list data structure. Each box with an arrow represents a pointer and a row is a linked list giving a sparse subsequence; the numbered boxes (in yellow) at the bottom represent the ordered data sequence. Searching proceeds downwards from the sparsest subsequence at the top until consecutive elements bracketing the ...

  3. Insert (SQL) - Wikipedia

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

    Using a SELECT statement after the INSERT statement with a database-specific function that returns the generated primary key for the most recently inserted row. For example, LAST_INSERT_ID() for MySQL. Using a unique combination of elements from the original SQL INSERT in a subsequent SELECT statement.

  4. Non-blocking linked list - Wikipedia

    en.wikipedia.org/wiki/Non-blocking_linked_list

    A linked list in an inconsistent state, caused by application of the naive lock-free deletion algorithm. Dotted lines are links that exist in intermediate states; solid lines represent the final state. Deletion of the node holding a has executed simultaneously with insertion of b after a, causing the insertion to be undone.

  5. Record locking - Wikipedia

    en.wikipedia.org/wiki/Record_locking

    In a SQL database, a record is typically called a "row". The introduction of granular (subset) locks creates the possibility for a situation called deadlock. Deadlock is possible when incremental locking (locking one entity, then locking one or more additional entities) is used. To illustrate, if two bank customers asked two clerks to obtain ...

  6. U2’s Larry Mullen Jr. Reveals Dyscalculia Diagnosis, Which He ...

    www.aol.com/u2-larry-mullen-jr-reveals-130614878...

    Larry Mullen Jr. has always found it difficult to comprehend arithmetic, and now he knows why.. After years of struggling with numeracy skills such as adding and counting, the U2 drummer, 63, has ...

  7. Optimistic concurrency control - Wikipedia

    en.wikipedia.org/wiki/Optimistic_concurrency_control

    Optimistic concurrency control (OCC), also known as optimistic locking, is a non-locking concurrency control method applied to transactional systems such as relational database management systems and software transactional memory. OCC assumes that multiple transactions can frequently complete without interfering with each other.

  8. “This Is Ridiculous”: Passenger Dragged For Unleashing ...

    www.aol.com/ridiculous-passenger-dragged...

    Image credits: clearpath_coach “She’s a flight attendant, not a dog sitter, and yes…not a child care provider either (speaking to parents who don’t control their children on flights).

  9. Alabama AD calls on fans to donate to NIL collective to stay ...

    www.aol.com/alabama-ad-calls-fans-donate...

    Alabama Crimson Tide Athletic Director Greg Byrne called on fans to donate to the school’s name, image and likeness (NIL) fund in a message on Wednesday.. Byrne posted his message to fans on ...