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  2. Correlated subquery - Wikipedia

    en.wikipedia.org/wiki/Correlated_subquery

    In a SQL database query, a correlated subquery (also known as a synchronized subquery) is a subquery (a query nested inside another query) that uses values from the outer query. This can have major impact on performance because the correlated subquery might get recomputed every time for each row of the outer query is processed.

  3. Lazy evaluation - Wikipedia

    en.wikipedia.org/wiki/Lazy_evaluation

    The actual values are only computed when needed. For example, one could create a function that creates an infinite list (often called a stream) of Fibonacci numbers. The calculation of the n-th Fibonacci number would be merely the extraction of that element from the infinite list, forcing the evaluation of only the first n members of the list.

  4. List of sequence alignment software - Wikipedia

    en.wikipedia.org/wiki/List_of_sequence_alignment...

    Indexes the genome with a k-mer lookup table with full sensitivity up to an adjustable number of mismatches. It is best for mapping 15-60 bp sequences to a genome. No No Yes No, multiple processes per search 2003 QPalma Can use quality scores, intron lengths, and computation splice site predictions to perform and performs an unbiased alignment.

  5. Relational algebra - Wikipedia

    en.wikipedia.org/wiki/Relational_algebra

    The relational algebra uses set union, set difference, and Cartesian product from set theory, and adds additional constraints to these operators to create new ones.. For set union and set difference, the two relations involved must be union-compatible—that is, the two relations must have the same set of attributes.

  6. Man United forward Amad Diallo signs contract extension to 2030

    www.aol.com/man-united-forward-amad-diallo...

    Manchester United forward Amad Diallo has signed a contract extension with the Premier League club until 2030. Diallo, who scored a late equalizer in a 2-2 draw with league leader Liverpool on ...

  7. Survivors Recall Being 'Ready to Die' After Red Sea Dive ...

    www.aol.com/lifestyle/survivors-recall-being...

    The Sea Story yacht sank in the Red Sea on Nov. 25, 2024, leaving four dead and multiple others missing Survivors Recall Being 'Ready to Die' After Red Sea Dive Vessel Sank, Leaving Them in the ...

  8. Worried about your drinking? Check out our Dry January advice

    www.aol.com/worried-drinking-check-dry-january...

    2. How to go dry. Many of us may be familiar with SMART goals from work or school settings. ... For some people it may work to announce their plan on social media — and invite others to join in ...

  9. Apache Spark - Wikipedia

    en.wikipedia.org/wiki/Apache_Spark

    Spark Core is the foundation of the overall project. It provides distributed task dispatching, scheduling, and basic I/O functionalities, exposed through an application programming interface (for Java, Python, Scala, .NET [16] and R) centered on the RDD abstraction (the Java API is available for other JVM languages, but is also usable for some other non-JVM languages that can connect to the ...