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  2. Universally unique identifier - Wikipedia

    en.wikipedia.org/wiki/Universally_unique_identifier

    UUIDv7 begins with a 48 bit big-endian Unix Epoch timestamp with approximately millisecond granularity. The timestamp can be shifted by any time shift value. Directly after the timestamp follows the version nibble, that must have a value of 7. The variant bits have to be 10x. Remaining 74 bits are random seeded counter (optional, at least 12 ...

  3. MySQL - Wikipedia

    en.wikipedia.org/wiki/MySQL

    MySQL (/ ˌ m aɪ ˌ ɛ s ˌ k juː ˈ ɛ l /) [6] is an open-source relational database management system (RDBMS). [6] [7] Its name is a combination of "My", the name of co-founder Michael Widenius's daughter My, [1] and "SQL", the acronym for Structured Query Language.

  4. 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]

  5. RocksDB - Wikipedia

    en.wikipedia.org/wiki/RocksDB

    RocksDB is not an SQL database (although MyRocks combines RocksDB with MySQL). Like other NoSQL and dbm stores, it has no relational data model , and it does not support SQL queries. Also, it has no direct support for secondary indexes, however a user may build their own internally using Column Families or externally.

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

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

    Ornil 16:53, 31 August 2005 (UTC) I think it is relevant, since having a child in kindergarten correlates with having young children in general (i.e. having a young family) and therefore correlates with not having had all of your children yet; i.e. the distribution will be skewed toward having one (or few) child MORE THAN the average ...

  7. NTFS - Wikipedia

    en.wikipedia.org/wiki/NTFS

    A positive value denotes the number of clusters in a File Record Segment. A negative value denotes the amount of bytes in a File Record Segment, in which case the size is 2 to the power of the absolute value. (0xF6 = -10 → 2 10 = 1024). 0x41 3 bytes 0x000000 Unused This field is not used by NTFS 0x44 1 byte 0x01 Bytes or Clusters Per Index Buffer

  8. Comment (computer programming) - Wikipedia

    en.wikipedia.org/wiki/Comment_(computer_programming)

    Java source code with block comments in red, line comments in green and program code in blue.. In computer programming, a comment is text embedded in source code that a translator (compiler or interpreter) ignores.

  9. List of built-in macOS apps - Wikipedia

    en.wikipedia.org/wiki/List_of_built-in_macOS_apps

    Basic — The default mode. Only application crashes are reported, and the dialog does not contain any debugging information. Developer — In addition to application crashes, crashes are also displayed for background and system processes. Server — The default for macOS Server systems. No crash reports are shown to the user (though they are ...