Sql Percentage Function

1.1: Increase the secondary data file from SQL SERVER 2005, the database does not default to generate NDF data files, generally have a main data file (MDF) is enough, but some large databases, because of information, and query frequently, so in order to improve the speed of query, You can store some of the records in a table or some of the tables in a different data file. Because the CPU and memory speed is much larger than the hard disk read and write speed, so you can put different data files on different physical hard drive, so that the execution of the query, ...

The title, but hope that users do not misunderstand, here is the need for large data technology in the current development process, is not to hinder the application of O2O, and for O2O, the most difficult than the source of data.   　　This is presumably also a lot of nuggets electric dealers, O2O manufacturers of the distress, but also the future to seize the O2O market opportunity for a watershed. In fact, O2O is not a new term in the field of electric business, as early as the group buying site began to appear. Baidu Encyclopedia for O2O definition for online to Offline (offline ...

One, the charm of the management of cloud computing is that users can start using their ID card and credit card, but that's the problem. Such a simple service is bound to bring many challenges to the unprepared IT department. 　　We've been through this many times before: the benefits of a technology that are easy to use end up being an unexpected management challenge, such as virtualization, which causes virtual machines to become fragmented, new security risks to smartphones, and instant messaging that triggers corporate governance problems. This article is intended to show IT managers how to maximize cloud computing ...

The rise of social media, Internet of things and E-commerce is prompting companies to look at data strategies in the hope of digging up more business value from large data analysis. The National Oceanic and Atmospheric Administration (NOAA) issued a detailed tsunami warning just 9 minutes after the March 11 earthquake in Japan.   NOAA then made a computer simulation of the real-time data obtained by the ocean sensors and produced a tsunami impact model that appeared on YouTube sites. NOAA's rapid response has benefited from its vast global network of ocean sensors. Through these ...

The intermediary transaction SEO diagnoses Taobao guest Cloud host technology Hall has written several about the pioneering business to do business-to-business Portal website article, for example: entrepreneurial business to do business-to-business Web site can still be successful?, business-to-business industry website in the next 5 years development trend forecast, business-to-business industry portal investment return and risk control analysis and other articles, Many times, many people ask on QQ: Xuejiang, how much do you think it is necessary to invest in business-to-business portals? How do I build a team? How to spend the money in order to minimize the risk of a rapid balance of payments ...

If you're familiar with it, you'll know. Intel actually has a lot of free resources to fight for, such as Intel has a software department that can help and guide users in software optimization and development, Intel offers compilers and various development tools, high-performance computing and the Internet are frequent Intel software, and some have joint laboratories with Intel. For example, Intel also has a data center department that provides consulting and services for data center construction and operation, all free of charge. "Intel's purpose is to help users improve their application level, but given the limited resources, we try to choose ...