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  2. Window function (SQL) - Wikipedia

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

    The PARTITION BY clause groups rows into partitions, and the function is applied to each partition separately. If the PARTITION BY clause is omitted (such as with an empty OVER() clause), then the entire result set is treated as a single partition. [4] For this query, the average salary reported would be the average taken over all rows.

  3. Shard (database architecture) - Wikipedia

    en.wikipedia.org/wiki/Shard_(database_architecture)

    Horizontal partitioning splits one or more tables by row, usually within a single instance of a schema and a database server. It may offer an advantage by reducing index size (and thus search effort) provided that there is some obvious, robust, implicit way to identify in which partition a particular row will be found, without first needing to search the index, e.g., the classic example of the ...

  4. Partition (database) - Wikipedia

    en.wikipedia.org/wiki/Partition_(database)

    An example could be a partition for all rows where the "zipcode" column has a value between 70000 and 79999. List partitioning: a partition is assigned a list of values. If the partitioning key has one of these values, the partition is chosen.

  5. Select (SQL) - Wikipedia

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

    SELECT * FROM (SELECT ROW_NUMBER OVER (ORDER BY sort_key ASC) AS row_number, columns FROM tablename) AS foo WHERE row_number <= 10 ROW_NUMBER can be non-deterministic : if sort_key is not unique, each time you run the query it is possible to get different row numbers assigned to any rows where sort_key is the same.

  6. MySQL Cluster - Wikipedia

    en.wikipedia.org/wiki/MySQL_Cluster

    MySQL Cluster, also known as MySQL Ndb Cluster is a technology providing shared-nothing clustering and auto-sharding for the MySQL database management system. It is designed to provide high availability and high throughput with low latency, while allowing for near linear scalability. [ 3 ]

  7. 10 Foods That Famous Chefs Refuse To Eat - AOL

    www.aol.com/10-foods-famous-chefs-refuse...

    1. Cilantro – Ina Garten. Few foods are as polarizing as the herb that some people love, and others swear to Bob, tastes like soap. The “Barefoot Contessa” herself supposedly falls into the ...

  8. Database scalability - Wikipedia

    en.wikipedia.org/wiki/Database_scalability

    For example, in OLTP systems, many transactions may attempt to insert data into the same table at the same time. In a shared nothing system, at any given moment, all such inserts are processed by the single server that manages that partition (shard) of the table, possibly overwhelming it, while the rest of the system has little to do. Many such ...

  9. The best last-minute stocking stuffers under $10 - AOL

    www.aol.com/lifestyle/last-minute-stocking...

    Whether you're looking for gift ideas for teens, know someone who loves to travel or simply want a few gift idea for the hard-to-shop-for men on your list, stocking stuffer are a great place to start.