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  2. Help:Conditional expressions - Wikipedia

    en.wikipedia.org/wiki/Help:Conditional_expressions

    The #ifexist function selects one of two alternatives depending on whether a page exists at the specified title. {{#ifexist: page title | value if page exists | value if page doesn't exist }} The page can be in any namespace , so it can be an article or "content page", an image or other media file, a category, etc.

  3. Power Query - Wikipedia

    en.wikipedia.org/wiki/Power_Query

    Power Query is an ETL tool created by Microsoft for data extraction, loading and transformation, and is used to retrieve data from sources, process it, and load them into one or more target systems. Power Query is available in several variations within the Microsoft Power Platform , and is used for business intelligence on fully or partially ...

  4. Data Analysis Expressions - Wikipedia

    en.wikipedia.org/wiki/Data_Analysis_eXpressions

    Data Analysis Expressions (DAX) is the native formula and query language for Microsoft PowerPivot, Power BI Desktop and SQL Server Analysis Services (SSAS) Tabular models. DAX includes some of the functions that are used in Excel formulas with additional functions that are designed to work with relational data and perform dynamic aggregation.

  5. File:Wikidata Queries - Beginner's Interface Guide.pdf ...

    en.wikipedia.org/wiki/File:Wikidata_Queries...

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Donate

  6. Error function - Wikipedia

    en.wikipedia.org/wiki/Error_function

    x erf x 1 − erf x; 0: 0: 1: 0.02: 0.022 564 575: 0.977 435 425: 0.04: 0.045 111 106: 0.954 888 894: 0.06: 0.067 621 594: 0.932 378 406: 0.08: 0.090 078 126: 0.909 ...

  7. Conjunctive query - Wikipedia

    en.wikipedia.org/wiki/Conjunctive_Query

    The query evaluation, and thus query containment, is LOGCFL-complete and thus in polynomial time. [9] Acyclicity of conjunctive queries is a structural property of queries that is defined with respect to the query's hypergraph : [ 6 ] a conjunctive query is acyclic if and only if it has hypertree-width 1.

  8. LibreOffice - Wikipedia

    en.wikipedia.org/wiki/LibreOffice

    Added Firebird functions DATEDIFF and DATEADD to the set of functions that can be used in the query designer; Added MariaDB/MySQL functions TIMESTAMPDIFF and TIMESTAMPADD to the set of functions that can be used in the query designer; Core / General. Added support for zoom gestures when using touchpads in the main view; Exporting to PDF updates ...

  9. Web query - Wikipedia

    en.wikipedia.org/wiki/Web_query

    The average length of a query was 2.4 terms. About half of the users entered a single query while a little less than a third of users entered three or more unique queries. Close to half of the users examined only the first one or two pages of results (10 results per page).