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  2. Power Query - Wikipedia

    en.wikipedia.org/wiki/Power_Query

    Power Query is built on what was then [when?] a new query language called M.It is a mashup language (hence the letter M) designed to create queries that mix together data. It is similar to the F Sharp programming language, and according to Microsoft it is a "mostly pure, higher-order, dynamically typed, partially lazy, functional language."

  3. Referential integrity - Wikipedia

    en.wikipedia.org/wiki/Referential_integrity

    For referential integrity to hold in a relational database, any column in a base table that is declared a foreign key can only contain either null values or values from a parent table's primary key or a candidate key. [2] In other words, when a foreign key value is used it must reference a valid, existing primary key in the parent table.

  4. Microsoft Power BI - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Power_BI

    The first release of Power BI was based on the Microsoft Excel-based add-ins: Power Query, Power Pivot and Power View. With time, Microsoft also added many additional features like question and answers, enterprise-level data connectivity, and security options via Power BI Gateways. [10] Power BI was first released to the general public on 24 ...

  5. Select (SQL) - Wikipedia

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

    A query includes a list of columns to include in the final result, normally immediately following the SELECT keyword. An asterisk ("*") can be used to specify that the query should return all columns of all the queried tables. SELECT is the most complex statement in SQL, with optional keywords and clauses that include:

  6. Trump to discuss ending childhood vaccination programs with ...

    www.aol.com/news/trump-discuss-ending-childhood...

    (Reuters) - U.S. President-elect Donald Trump in an interview published on Thursday said he will be talking to Robert F. Kennedy Jr., his nominee to run the Department of Health and Human Services ...

  7. Christina Aguilera reunites with Sabrina Carpenter at her L.A ...

    www.aol.com/entertainment/christina-aguilera...

    During one of her many fun bits in the show, Carpenter played a game of spin the bottle with her backup dancers to pick what to sing next, and they landed on “a little Christina.”

  8. ‘Alcohol gene’ could predict how cocktails may affect you ...

    www.aol.com/news/alcohol-gene-could-predict...

    If you have an inherited intolerance to alcohol, a mutated gene could be the culprit. An at-home DNA test could detect whether you have the mutation, but doctors say there could be some drawbacks.

  9. Determining the number of clusters in a data set - Wikipedia

    en.wikipedia.org/wiki/Determining_the_number_of...

    The average silhouette of the data is another useful criterion for assessing the natural number of clusters. The silhouette of a data instance is a measure of how closely it is matched to data within its cluster and how loosely it is matched to data of the neighboring cluster, i.e., the cluster whose average distance from the datum is lowest. [8]