By William Gardner Hale, Professor of Latin in the University of Chicago. (Extracted From the Transactions of the American Philological Association. Vol. Xxiv. 1893.).John ForgeDepartment of Philosophy and Moral Science, Ghent UniversityPhilosophica...
示例2:使用索引 EXPLAIN SELECT * FROM users WHERE name = 'John'; 输出: idselect_typetabletypepossible_keyskeyrowsExtra 1 SIMPLE users ref idx_name idx_name 10 Using where 结果: type 为ref,表示使用了索引。 rows 显著减少,性能提高。5
SELECTname,ageFROMusersWHEREname='John Doe'; 由于查询只需要name和age列的值,而这些值都在索引中,所以MySQL可以使用覆盖索引来执行查询,而不需要回表查询数据。 3. 避免过度索引 不要过度索引表,因为过多的索引会增加写操作的开销(如INSERT、UPDATE和DELETE)。每个额外的索引都需要占用磁盘空间,并可能降低写操作...
John Wiley & Sons, LtdJournal of ZoologyConradt, L., Gordon, I. J., Clutton-Brock, T. H., Thompson, D. & Guinness, F. E. 2001 Could the indirect competition hypothesis explain inter-sexual site segregation in red deer (Cervus elaphus L)? J. Zool. (Lond.) 254, 185-193....
John Wiley & Sons, LtdTopics in Cognitive ScienceSmith, L. B., & Sheya, A. (2010). Is cognition enough to explain cognitive development? Trends in Cognitive Sciences: 2., 725-735.Smith, L. B., & Sheya, A. (2010). Is cognition enough to explain cognitive development? Topics in ...
Unravelling the Past to Explain the Present? Two Studies in Zulu Historydoi:10.1080/02582479608671877JOHN LAMBERTUniversity of South AfricaSouth African Historical JournalLambert, J 1996. Unravelling the Past to Explain the Present? Two Studies in Zulu History. South African Historical Jl!urnal May ...
An introduction to the maths behind AT&T's Natural Voices. Making Computers Talk by Andy Aaron, Ellen Eide and John F. Pitrelli, Scientific American, March 17, 2003. Describes IBM's efforts to develop concatenative speech synthesis.Technical papersA Short Introduction to Text-to-Speech Synthesis ...
The Internet of Things: From Data to Insight by John Davies and Carolina Fortuna (eds). John Wiley & Sons, 2020. The Internet of Things by Samuel Greengard. MIT Press, 2015. A short, basic primer that covers the basic concepts, before moving onto practical implementations, opportunities, an...
Stephen Colbert chats with John Dickerson about what to expect from Donald Trump's second term in The White House and how to talk to young people about it. #Colbert #JohnDickerson #CBSNews #Election2024 #StephenColbert #TheLateShow
- I think John and Peter will. -它是一个好想法。 但谁是去的to___计划? -我认为约翰和彼得将。 [translate] aToday, something happened at school, Zhao Zihao students and Korean students had built a number of contradictions, Zhao Zhihao very angry, the chair lift up, to break the classroo...