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.
Q. Zhao, S. Hoi, T. Liu, S. Bhowmick, M. Lyu, and W. Ma. WWW '06: Proceedings of the 15th international conference on World Wide Web, page 543--552. New York, NY, USA, ACM Press, (2006)
R. Swan, and J. Allan. SIGIR '00: Proceedings of the 23rd annual international ACM SIGIR conference on Research and development in information retrieval, page 49--56. New York, NY, USA, ACM Press, (2000)
J. Leskovec, J. Kleinberg, and C. Faloutsos. KDD '05: Proceeding of the eleventh ACM SIGKDD international conference on Knowledge discovery in data mining, page 177--187. New York, NY, USA, ACM Press, (2005)
T. Amghar, T. Charnois, and D. Battistelli. Proceedings of the 9th International Conference on Conceptual Structures (ICCS 2001), volume 2120 of Lecture Notes in Computer Science, page 29-43. Springer, (2001)
K. Wolff, and W. Yameogo. Proceedings of the 11th International Conference on Conceptual Structures (ICCS 2003), volume 2746 of Lecture Notes in Computer Science, page 188-200. Springer, (2003)
H. Schärfe, and P. Øhrstrøm. Proceedings of the 11th International Conference on Conceptual Structures (ICCS 2003), volume 2746 of Lecture Notes in Computer Science, page 201-214. Springer, (2003)
P. Øhrstrøm, and H. Schärfe. Proceedings of the 12th International Conference on Conceptual Structures (ICCS 2004), volume 3127 of Lecture Notes in Computer Science, page 388-401. Springer, (2004)