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  2. SQL/XML - Wikipedia

    en.wikipedia.org/wiki/SQL/XML

    SQL/XML or XML-Related Specifications is part 14 of the Structured Query Language (SQL) specification. In addition to the traditional predefined SQL data types like NUMERIC, CHAR, TIMESTAMP, ... it introduces the predefined data type XML together with constructors, several routines, functions, and XML-to-SQL data type mappings to support ...

  3. List of XML and HTML character entity references - Wikipedia

    en.wikipedia.org/wiki/List_of_XML_and_HTML...

    In SGML, HTML and XML documents, the logical constructs known as character data and attribute values consist of sequences of characters, in which each character can manifest directly (representing itself), or can be represented by a series of characters called a character reference, of which there are two types: a numeric character reference and a character entity reference.

  4. XML database - Wikipedia

    en.wikipedia.org/wiki/XML_database

    XML is stored into a native XML Type as defined by ISO Standard 9075-14 [6] RDBMS that support the ISO XML Type are: IBM DB2 (pureXML [7]) Microsoft SQL Server [8] Oracle Database [9] PostgreSQL [10] Typically an XML-enabled database is best suited where the majority of data are non-XML. For datasets where the majority of data are XML, a native ...

  5. Help:Displaying a formula - Wikipedia

    en.wikipedia.org/wiki/Help:Displaying_a_formula

    When an inline formula is long enough, it can be helpful to allow it to break across lines. Whether using LaTeX or templates, split the formula at each acceptable breakpoint into separate <math> tags or {} templates with any binary relations or operators and intermediate whitespace included at the trailing rather than leading end of a part.

  6. XQuery - Wikipedia

    en.wikipedia.org/wiki/XQuery

    As such, its capabilities overlap with XSLT, which was designed expressly to allow input XML documents to be transformed into HTML or other formats. The XSLT 2.0 and XQuery standards were developed by separate working groups within W3C , working together to ensure a common approach where appropriate.

  7. XPath - Wikipedia

    en.wikipedia.org/wiki/XPath

    XPath (XML Path Language) is an expression language designed to support the query or transformation of XML documents. It was defined by the World Wide Web Consortium (W3C) in 1999, [ 1 ] and can be used to compute values (e.g., strings , numbers, or Boolean values ) from the content of an XML document.

  8. 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 ...

  9. Database design - Wikipedia

    en.wikipedia.org/wiki/Database_design

    Turn information items into columns – Decide what information needs to be stored in each table. Each item becomes a field, and is displayed as a column in the table. For example, an Employees table might include fields such as Last Name and Hire Date. Specify primary keys – Choose each table's primary key. The primary key is a column, or a ...