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  2. Data cleansing - Wikipedia

    en.wikipedia.org/wiki/Data_cleansing

    Data cleansing may also involve harmonization (or normalization) of data, which is the process of bringing together data of "varying file formats, naming conventions, and columns", [2] and transforming it into one cohesive data set; a simple example is the expansion of abbreviations ("st, rd, etc." to "street, road, etcetera").

  3. First normal form - Wikipedia

    en.wikipedia.org/wiki/First_normal_form

    All columns are regular [i.e. rows have no hidden components such as row IDs, object IDs, or hidden timestamps]. Violation of any of these conditions would mean that the table is not strictly relational, and therefore that it is not in first normal form. Examples of tables (or views) that would not meet this definition of first normal form are:

  4. Wide and narrow data - Wikipedia

    en.wikipedia.org/wiki/Wide_and_narrow_data

    The pandas package in Python implements this operation as "melt" function which converts a wide table to a narrow one. The process of converting a narrow table to wide table is generally referred to as "pivoting" in the context of data transformations.

  5. pandas (software) - Wikipedia

    en.wikipedia.org/wiki/Pandas_(software)

    Pandas (styled as pandas) is a software library written for the Python programming language for data manipulation and analysis. In particular, it offers data structures and operations for manipulating numerical tables and time series. It is free software released under the three-clause BSD license. [2]

  6. Database schema - Wikipedia

    en.wikipedia.org/wiki/Database_schema

    A database generally stores its schema in a data dictionary. Although a schema is defined in text database language, the term is often used to refer to a graphical depiction of the database structure. In other words, schema is the structure of the database that defines the objects in the database.

  7. T-Mobile class action lawsuit alleges company disguised fee ...

    www.aol.com/t-mobile-class-action-lawsuit...

    A recently announced class action lawsuit filed against T-Mobile alleges the company has disguised a hidden fee as a government charge for two decades. The wireless network allegedly misrepresents ...

  8. Wealth strategies that used to be reserved for billionaires ...

    www.aol.com/wealth-strategies-used-reserved...

    Investment tactics often require big buy-ins and high fees. New tech is lowering the price of entry in fields like direct indexing and private markets. This article is part of "Transforming ...

  9. Russian 'shadow fleet' to be boarded or sanctioned if it ...

    www.aol.com/news/russian-shadow-fleet-boarded...

    Vessels of Russia's so-called shadow tanker fleet will be boarded or put on a sanctions list if they do not provide proof of insurance, Estonia's prime minister said on Tuesday. 'Shadow fleet ...