Oracle Self Join Performance

Ellison (Larryellison), who had just finished his 70 birthday last month, finally made a change. 37 years after he founded and led Oracle, he announced last week that he would step down as CEO of Oracle and continue as executive chairman. Mr. Ellison's chief executive will be replaced by Hurd, the company's current joint president, Hurd and Chavelat Caze (Safracatz). As the only CEO in the history of Oracle, it is also the longest-serving technology public in the history of Silicon Valley ...

As the world's most prestigious technology industry summit, the 2014 Intel Information Technology Summit (IDF) was held in Shenzhen on April 2. With completely independent research and development of the dual road and four-way server new products, by the National Ministry of Industry "based on safe and controllable software and hardware products cloud computing Solutions" Baodeiun, Pao and Huawei, Haier and other representatives of Chinese manufacturers shine. At Intel Channel Sales Asia-Pacific's first, technology and application of new products released total home-made server first, Pao will join hands with Intel to help enterprises create innovative business value of the new it, win the cloud era, big ...

Absrtact: The field of Business Intelligence (Business intelliegnce) has been dominated by Oracle, IBM, Microsoft and other IT giants, these companies have complete and comprehensive business intelligence solutions, from data collection, storage to mining and display, all aspects are fully covered Business Intelligence (Business intelliegnce) has traditionally been dominated by it giants such as Oracle, IBM and Microsoft, which have complete and comprehensive business intelligence solutions ranging from data collection, storage to mining and presentation, all ...

The greatest fascination with large data is the new business value that comes from technical analysis and excavation. SQL on Hadoop is a critical direction. CSDN Cloud specifically invited Liang to write this article, to the 7 of the latest technology to do in-depth elaboration. The article is longer, but I believe there must be a harvest. December 5, 2013-6th, "application-driven architecture and technology" as the theme of the seventh session of China Large Data technology conference (DA data Marvell Conference 2013,BDTC 2013) before the meeting, ...

A, virtualization virtualization refers to the ability to simulate multiple virtual machines on the same physical machine. Each virtual machine has a separate processor, memory, hard disk, and network interface logically. The use of virtualization technology can improve the utilization of hardware resources, so that multiple applications can run on the same physical machine with each other isolated operating environment. There are also different levels of virtualization, such as virtualization at the hardware level and virtualization at the software level. Hardware virtualization refers to the simulation of hardware to obtain a similar to the real computer environment, you can run a complete operating system. In the hardware virtual ...

Affirmation: The article is longer, if you are the industry webmaster please read carefully, welcome to join the industry webmaster QQ Group: 37466050 (using the invitation mechanism, add please specify the URL.) The rise of the industry web site has become an unstoppable trend in China's e-commerce development, according to a survey of 07 growth rate is expected to be close to 50%. For many industry websites, after a period of development, to seize the opportunity to win a certain market share. 　　At the same time, will face many new challenges, the market competition will become more and more fierce. Compared with the Internet companies that have VC support ...

August 2, according to the disclosure, Samsung Electronics this year's investment scale will be higher than planned. The company's IR (investor-related) leader, Li Jinghen, posted its second-quarter results on July 30, "with investment in new industries such as OLED to be increased this year, the scale of equipment investment is likely to be higher than the previous plan's 18 trillion won (15.2 billion US dollars)", "Although the global economy is still unstable, But in order to seize the future growth fundamentals and opportunities, we decided to engage in aggressive investment ", especially" we will be in the semiconductor and LCD field technology advantage for weapons, LED ...

Recently, VMware announced to the outside world, including enhanced the recently released VMware Vcloud®suite management products in the update Cloud Management product suite. At the same time, VMware also launched a new product for this suite VMware vcloud Don center™5.1, updated vmware IT Business Management suite™, further simplifying and automating management, Improved IT department management ...

Bjoern Lasse Herrmann, co-founder of the Venture accelerator Blackbox, has conducted a research project "entrepreneurial Genome", which aims to reveal the workings of startups (click here to see the highlights of the report). Their first report released more than 650 questionnaires for Silicon Valley start-ups, revealing 7 features of the failed Internet start-up companies. In the report, the development cycle of the start-up company is divided into four stages: exploratory phase, verification stage, efficiency promotion stage and expansion stage. Internet start-up company ...

Since March 20, 2013 Docker appeared in front of developers, less than two years now. "Docker has transformed from a great idea into a great technology, and from a great technology to a great ecosystem, and even from a great ecosystem to a great movement." "I remember at the Docker summit in 2013, developers were still talking about Docker, and at the 2014 Amsterdam Summit, participants were already sharing its case." However, Docker's business ...