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{{Birth date and age2}} – calculates age at a specified date {{Birth based on age as of date}} – used when a reference mentions the age of a person as of the date of the reference's publication {{Birth year and age}} {} {{Death date and age}} {{Death year and age}} {{BirthDeathAge}} – combines the functionality of the above six birth and ...
Without an ORDER BY clause, the order of rows returned by an SQL query is undefined. The DISTINCT keyword [5] eliminates duplicate data. [6] The following example of a SELECT query returns a list of expensive books. The query retrieves all rows from the Book table in which the price column contains a value greater
This template calculates the birth year and current age based on the age as of a date. Template parameters [Edit template data] This template prefers inline formatting of parameters.
If birth date is BC, set to "b". – (optional) gregorian: If Julian date is used, this parameter is required. The date provided is used for emitting the correct microformat translation of the birth date. parm 1 (optional) dt: This value if present is the ISO8601 value emitted to indicate microformat birth date. It overrides any calculated value.
References ^ "Date Design Pattern". Microformats Wiki. April 7, 2013. ^ "hCalendar closed issues". Microformats Wiki. August 28, 2009. Specifically rejects supporting the Julian calendar. Notes Do not use with non-Gregorian dates because the resulting hCard hidden date will be false. The template will appear broken when the parameters are left blank. When only the month or year of a person's ...
Even the query language of SQL is loosely based on a relational algebra, though the operands in SQL are not exactly relations and several useful theorems about the relational algebra do not hold in the SQL counterpart (arguably to the detriment of optimisers and/or users). The SQL table model is a bag , rather than
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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 ...