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  2. Comparison of relational database management systems - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_relational...

    Note (2): MariaDB and MySQL provide ACID compliance through the default InnoDB storage engine. [71] [72] Note (3): "For other than InnoDB storage engines, MySQL Server parses and ignores the FOREIGN KEY and REFERENCES syntax in CREATE TABLE statements. The CHECK clause is parsed but ignored by all storage engines." [73]

  3. Java (programming language) - Wikipedia

    en.wikipedia.org/wiki/Java_(programming_language)

    Java is a high-level, class-based, object-oriented programming language that is designed to have as few implementation dependencies as possible. It is a general-purpose programming language intended to let programmers write once, run anywhere (), [16] meaning that compiled Java code can run on all platforms that support Java without the need to recompile. [17]

  4. Join (SQL) - Wikipedia

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

    PostgreSQL, MySQL and Oracle support natural joins; Microsoft T-SQL and IBM DB2 do not. The columns used in the join are implicit so the join code does not show which columns are expected, and a change in column names may change the results.

  5. Universally unique identifier - Wikipedia

    en.wikipedia.org/wiki/Universally_unique_identifier

    For example, the number of random version-4 UUIDs which need to be generated in order to have a 50% probability of at least one collision is 2.71 quintillion, computed as follows: [27] n ≈ 1 2 + 1 4 + ln ⁡ ( 2 ) × 2 123 ≈ 2.71 × 10 18 . {\displaystyle n\approx {\frac {1}{2}}+{\sqrt {{\frac {1}{4}}+\ln(2)\times 2^{123}}}\approx 2.71 ...

  6. Wikipedia - Wikipedia

    en.wikipedia.org/wiki/Wikipedia

    Various collaborative online encyclopedias were attempted before the start of Wikipedia, but with limited success. [19] Wikipedia began as a complementary project for Nupedia, a free online English-language encyclopedia project whose articles were written by experts and reviewed under a formal process. [20]

  7. UTF-16 - Wikipedia

    en.wikipedia.org/wiki/UTF-16

    UTF-16 (16-bit Unicode Transformation Format) is a character encoding method capable of encoding all 1,112,064 valid code points of Unicode. [a] The encoding is variable-length as code points are encoded with one or two 16-bit code units.

  8. ASCII - Wikipedia

    en.wikipedia.org/wiki/ASCII

    ASCII (/ ˈ æ s k iː / ⓘ ASS-kee), [3]: 6 an acronym for American Standard Code for Information Interchange, is a character encoding standard for electronic communication. . ASCII codes represent text in computers, telecommunications equipment, and other devic

  9. Wikipedia:Reference desk/Archives/Science/September 2005 ...

    en.wikipedia.org/wiki/Wikipedia:Reference_desk/...

    Yes, this definitely happens. I read an article about someone dying from gunshots into the air in a wedding somewhere in the mideast. Luckily most of the cultures that do that are in more sparsely populated areas. One specific example, my Aunt's store had a bullet come down at a very steep angle through the window in the front of the store.