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  2. Lookup table - Wikipedia

    en.wikipedia.org/wiki/Lookup_table

    This has been followed by subsequent spreadsheets, such as Microsoft Excel, and complemented by specialized VLOOKUP and HLOOKUP functions to simplify lookup in a vertical or horizontal table. In Microsoft Excel the XLOOKUP function has been rolled out starting 28 August 2019.

  3. 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.

  4. Relational algebra - Wikipedia

    en.wikipedia.org/wiki/Relational_algebra

    The right outer join ( ) behaves almost identically to the left outer join, but the roles of the tables are switched. The right outer join of relations R and S is written as R S. [e] The result of the right outer join is the set of all combinations of tuples in R and S that are equal on their common attribute names, in addition to tuples in S ...

  5. Numeric precision in Microsoft Excel - Wikipedia

    en.wikipedia.org/wiki/Numeric_precision_in...

    Excel maintains 15 figures in its numbers, but they are not always accurate; mathematically, the bottom line should be the same as the top line, in 'fp-math' the step '1 + 1/9000' leads to a rounding up as the first bit of the 14 bit tail '10111000110010' of the mantissa falling off the table when adding 1 is a '1', this up-rounding is not undone when subtracting the 1 again, since there is no ...

  6. Side Show (musical) - Wikipedia

    en.wikipedia.org/wiki/Side_Show_(musical)

    Side Show is a musical by Bill Russell (book and lyrics) and Henry Krieger (music) based on the lives of Daisy and Violet Hilton, conjoined twins who became famous stage performers in the 1930s. The musical opened October 16, 1997, on Broadway ; Robert Longbottom directed and choreographed, and the cast starred Emily Skinner as Daisy and Alice ...

  7. Routing table - Wikipedia

    en.wikipedia.org/wiki/Routing_table

    A routing table is a database that keeps track of paths, like a map, and uses these to determine which way to forward traffic. A routing table is a data file in RAM that is used to store route information about directly connected and remote networks. Nodes can also share the contents of their routing table with other nodes.

  8. Second Level Address Translation - Wikipedia

    en.wikipedia.org/wiki/Second_Level_Address...

    A software based shadow page table is a common solution to reduce translation overhead compared to double translation. Shadow page tables translate guest virtual addresses directly to host physical addresses. Each VM has a separate shadow page table and the hypervisor is in charge of managing them.

  9. Optare Excel - Wikipedia

    en.wikipedia.org/wiki/Optare_Excel

    This updated Excel was known as the Excel 2, which replaced the Delta which by then had finished production. The original Excel was still sold alongside the Excel 2 until it was discontinued by Optare in late 2000. Excel 2s were only built in 10.7 m (35 ft), 11.5 m (38 ft) and 11.8 m (39 ft) configurations.