If you plan to store UUID values in a Primary Key column, then you are better off using a TSID (time-sorted unique identifier).
One such implementation is offered by the Hypersistence TSID OSS library, which provides a 64-bit TSID that’s made of two parts:
a 42-bit time component
a 22-bit random component
The random component has two parts:
a node identifier (0 to 20 bits)
a counter (2 to 22 bits)
The node identifier can be provided by the tsid.node system property when bootstrapping the application:
-Dtsid.node="12"
The time between overhauls (TBO) of airplane engines is calculated during the manufacturer’s engineering process in order to ensure an aircraft performs its best even after long hours of operation. It’s a critical moment in its existence that will determine future performance so overhauls should not be taken lightly, and neither should TBO since it determines just when and what parts in the engine need to be repaired or refurbished. When these parameters are followed safety is enhanced and the lifespan of an engine can be prolonged. JSA has been managing engine overhauls for over 3 decades, helping aircraft stay safe with our FAA-certified parts. We’re honored to help our clients continue to soar the sky by keeping tabs of their TBO while safely prolonging their flight time.
During Daylight Saving Time, clocks in the United Kingdom are set forward one hour to British Summer Time (BST). The UK is the only country that observes BST in the summer. Some other countries, such as Ireland, observe the same local time, but under a different name.
S. Gawre, N. Patidar, und R. Nema. International Journal of Applied Control, Electrical and Electronics Engineering (IJACEEE), Volume 2 von IFIP Advances in Information and Communication Technology, Seite 21-30. http://airccse.com/ijaceee/papers/2314ijaceee02.pdf, (August 2014)
S. Chakraborty, S. Sarkar, S. Tewari, und M. Pal. International Journal on Soft Computing, Artificial Intelligence and Applications (IJSCAI), 2 (4):
8(August 2013)
C. Liu, R. White, und S. Dumais. Proceedings of the 33rd international ACM SIGIR conference on Research and development in information retrieval, Seite 379--386. ACM, (2010)
R. Attri, und W. Wu. Proceedings of the 11th International Conference on e-Learning: ICEL2016, Seite 176--184. Kuala Lampur, Academic Conference and Publishing, Reading, (Juni 2016)
R. Attri, und W. Wu. Proceedings of 9th International Conference on Researching in Work and Learning (RWL), Singapore, Institute for Adult Learning, Singapore,, (Dezember 2015)
R. Attri, und W. Wu. Proceedings of 1st Australia-New Zealand Conference of Advanced Research (ANZCAR-2017), Seite 1--10. Melbourne, Asia Pacific Institute of Advanced Research (APIAR), (Juni 2017)
C. Castillo-Chavez, D. Bichara, und B. Morin. Proceedings of the National Academy of Sciences of the United States of America, 113 (51):
14582-14588(2016)
M. Subramaniyan. Department of Product and Production Development, Chalmers University of Technology, Maskingränd 2, 412 58 Göteborg, Master Thesis, (1-128 2015)
Y. Song, Z. Zhuang, H. Li, Q. Zhao, J. Li, W. Lee, und C. Giles. Proceedings of the 31st Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, Seite 515--522. New York, NY, USA, ACM, (2008)