Oracle Distinct Example

2011, IBM has finally become a century-old shop. On birthdays, IBM published four pages of ads in the Wall Street Journal, the Washington Post and The New York Times. Our grandparents ' generation, the company that everyone admired, no longer exists. Of the top 25 companies in the world's top 500 companies in 1961, only 6 are now left. "The ad may have been designed to promote IBM's resilience and quality, but it also highlights the entrepreneurial world today, with new companies springing up like bamboo, not just in Silicon Valley but around the world," he said. ...

Method 1 delete yourtable where [id] not in (select max ([id]) from yourtable group by (name + value) b on a.id = b.id where b.id ...

SQL statement for querying and deleting duplicate records (i) For example, there is a field "name" in Table A, and the "name" value may be the same between different records, and now you need to query between the records in the table, the "name" value has duplicates, and select name, Count (*) from-a group by name has count (*) > 1 as ...

The most sexy it technology at the moment is undoubtedly big data. 　　Today, the big data has even become the Chi of white hair, at least some of the taxi drivers met to Kan for half a day, so it is also logical to think that all do not need large data thinking business development enterprises are bullying, you can not have large data items, but you should be in the preparation of data on the road. But wait a minute, even if companies don't want to bullying, big data is not meant to be on the table – it often means new IT spending because traditional systems can't handle it. Only the ideal of enterprise fullness, is the most profit ...

On April 28, Amazon investors got big news: Wall Street's concerns were completely dispelled as earnings reports showed all first-quarter earnings and profit margins were well above analysts' estimates, Amazon shares soared 16% within a day on Friday under the single-day record of gains from October 2009 to the present day, which for Amazon itself means that its market value soared over the course of a single day Nearly 10 billion U.S. dollars. Now Amazon is no longer just a shopping site, it has become a set of shopping, living, video, entertainment ...

Whether you favor or reject it, big data has become a fact.     Now we have to go back to the facts and explore the truth ... Big Data is one of the hottest topics of the day, and none of us can be in it. Like the cloud that emerged a few years ago, big data has caused widespread concern in the marketplace, and there is an urgent need for companies to define big data.   Large data lacks a standard and pervasive definition, at least not as widely accepted as NIST's definition of cloud. &nbs ...

Today's international competition is not the competition of enterprises, nor the competition of products, but entered an unprecedented era of industrial chain war. If China has in the past on the one hand because of low start, after the reform and opening-up can only start from the processing and manufacturing links to participate in international competition; On the other hand, because of the lack of awareness of the importance of industrial chain competition in the global economic era and the loss of early layout in the traditional industry chain, Oil and labor prices are climbing in the economic environment struggling ...

Graphic Design in Information Design Introduction to Information Design In today's complex world, the design is also full of flowers, what design is the most user-friendly, and can give users the information they need, which is worth discussing of. The definition of information design Information design as the name suggests is designed for the exchange of information, if we take the word "information" separately to explain it, first of all "information" the term has a long history, it is the basis for the development of human civilization, It can be said that all human knowledge and stories are information, through the transmission of information, people ...