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In computer science, a lookup table (LUT) is an array that replaces runtime computation with a simpler array indexing operation, in a process termed as direct addressing.The savings in processing time can be significant, because retrieving a value from memory is often faster than carrying out an "expensive" computation or input/output operation. [1]
A derived table is the use of referencing an SQL subquery in a FROM clause. Essentially, the derived table is a subquery that can be selected from or joined to. The derived table functionality allows the user to reference the subquery as a table. The derived table is sometimes referred to as an inline view or a subselect.
Microsoft Excel is a spreadsheet editor developed by Microsoft for Windows, macOS, Android, iOS and iPadOS.It features calculation or computation capabilities, graphing tools, pivot tables, and a macro programming language called Visual Basic for Applications (VBA).
Q&A was a database and word processing software program for IBM PC–compatible computers published by Symantec and partners from 1985 to 1998. It was written by a team headed by Symantec founder Dr. Gary Hendrix, [1] [2] Denis Coleman, and Gordon Eubanks.
SQL:2011 or ISO/IEC 9075:2011 (under the general title "Information technology – Database languages – SQL") is the seventh revision of the ISO (1987) and ANSI (1986) standard for the SQL database query language.
Washington, D.C., Mayor Muriel Bowser said she met with President-elect Donald Trump to discuss their "shared priorities" for the nation's capital.
Trump said in the interview that he doesn’t plan to revive his policy of separating children from their families at the U.S.-Mexico border, but he also isn’t taking that off the table.
Bitcask is an Erlang application that provides an API for storing and retrieving key/value data into a log-structured hash table.The design owes a lot to the principles found in log-structured file systems and draws inspiration from a number of designs that involve log file merging.