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  2. Help:Cheatsheet - Wikipedia

    en.wikipedia.org/wiki/Help:Cheatsheet

    For a full list of editing commands, see Help:Wikitext; For including parser functions, variables and behavior switches, see Help:Magic words; For a guide to displaying mathematical equations and formulas, see Help:Displaying a formula; For a guide to editing, see Wikipedia:Contributing to Wikipedia

  3. Data mapping - Wikipedia

    en.wikipedia.org/wiki/Data_mapping

    Consolidation of multiple databases into a single database and identifying redundant columns of data for consolidation or elimination For example, a company that would like to transmit and receive purchases and invoices with other companies might use data mapping to create data maps from a company's data to standardized ANSI ASC X12 messages ...

  4. Single Table Inheritance - Wikipedia

    en.wikipedia.org/wiki/Single_Table_Inheritance

    Single table inheritance is a way to emulate object-oriented inheritance in a relational database. When mapping from a database table to an object in an object-oriented language , a field in the database identifies what class in the hierarchy the object belongs to. [ 1 ]

  5. Schema matching - Wikipedia

    en.wikipedia.org/wiki/Schema_matching

    The terms schema matching and mapping are often used interchangeably for a database process. For this article, we differentiate the two as follows: schema matching is the process of identifying that two objects are semantically related (scope of this article) while mapping refers to the transformations between the objects.

  6. SQL syntax - Wikipedia

    en.wikipedia.org/wiki/SQL_syntax

    Each column in an SQL table declares the type(s) that column may contain. ANSI SQL includes the following data types. [14] Character strings and national character strings. CHARACTER(n) (or CHAR(n)): fixed-width n-character string, padded with spaces as needed; CHARACTER VARYING(n) (or VARCHAR(n)): variable-width string with a maximum size of n ...

  7. Britain sets first codes of practice for tech firms in online ...

    www.aol.com/news/britain-sets-first-codes...

    Britain's online safety regime came into force on Monday, requiring social media companies like Meta's Facebook and ByteDance's TikTok to take action to tackle criminal activity on their platforms ...

  8. SQL - Wikipedia

    en.wikipedia.org/wiki/SQL

    SQL was initially developed at IBM by Donald D. Chamberlin and Raymond F. Boyce after learning about the relational model from Edgar F. Codd [12] in the early 1970s. [13] This version, initially called SEQUEL (Structured English Query Language), was designed to manipulate and retrieve data stored in IBM's original quasirelational database management system, System R, which a group at IBM San ...

  9. How to make delicious homemade gravy for Thanksgiving dinner

    www.aol.com/delicious-homemade-gravy...

    Another alternative, if you're vegetarian, not vegan, is to use natural yogurt seasoned with herbs and spices. Where there's a will, there's a way. Reviewed-approved kitchen and cooking ...