Oracle Left Join

Oracle acquired Sun in 09, which is essential for gaining control of MySQL, the hottest open source DBMS. However, the takeover does not seem to have fully achieved Oracle's goal: as early as 08 after MySQL was acquired by Sun, MySQL Kibaki (some founder and top engineers) left MySQL and set up a new company Skysql, and after Sun was acquired by Oracle, A group of senior executives also went out to create the Monty program Ab (MARIADB's parent company). Yes...

Oracle acquired Sun in 09, which is essential for gaining control of MySQL, the hottest open source DBMS. However, the takeover does not seem to have fully achieved Oracle's goal: as early as 08 after MySQL was acquired by Sun, MySQL Kibaki (some founder and top engineers) left MySQL and set up a new company Skysql, and after Sun was acquired by Oracle, A group of senior executives also went out to create the Monty program Ab (MARIADB's parent company). Yes...

-Wu Censian Hewlett-Packard's former chief executive (CEO) Hurd is certainly not in a calm mood for two months.　　From the original peak, to be a sexual harassment scandal, and then to be found false reimbursement, the final image collapsed by HP board of Directors Lightning dismissal, "fished" more than 40 million of billions of dollars "breakup fee", Hurd in a short period of one months experience let a person can't help but sigh. And when the audience thought that the plot would come to an end, but the wonderful is still behind: Oracle CEO Ellison is very appreciative of Mr. Hurd, he invited him to serve as the joint president of Oracle, and out of 950,000 U.S.

We want to do not only write SQL, but also to do a good performance of the SQL, the following for the author to learn, extract, and summarized part of the information to share with you! (1) Select the most efficient table name order (valid only in the Rule-based optimizer): The ORACLE parser processes the table names in the FROM clause in Right-to-left order, and the last table in the FROM clause (the underlying table driving tables) is processed first, In the case where multiple tables are included in the FROM clause, you must select the table with the least number of records as the underlying table. If...

Pinch point count, graduation also nearly two years, in the two years of time, I went through a big company--my own business--to join a start-up company these three different work rhythm, in addition to the system basically all kinds of companies have been, but also have some of their own choice of work to think, and then to the graduates to find internships/job-hopping season, 　　So today, let's share my opinion. 　　Note: I am not very interested in the work within the system, so the following discussion does not involve your party's enterprises and institutions and accounts. First introduce myself to the work process, do ...

Liang Jianzhang left him with the traditional booking business, with it technology, creating a model that no one else has done. He relies on "mouse + cement" to create a successful Nasdaq-listed company. After the company's successful listing, the young business leader, who likes to study problems, resigned from his post as CEO and chose to pursue further studies in the United States. In the six years of Liang Jianzhang exit, China's online tourism market has developed rapidly, although Ctrip has also gained considerable development, but the pace is getting heavier. At the same time six years, in the online tourism market, Ctrip's traditional rivals are surprisingly different from each other ...

Shrinking markets and dwindling profits have left the IT giants struggling to reach around in an increasingly crowded environment, scrambling for each other's turf, blurring the boundaries between them.　　Article | The reporter Wang The source | The July issue of the Journal of Excellence If, for the past three years, HP CEO Hurd wielding a big stick to demonstrate his ability to execute and cost control, he is now at a critical juncture to prove his vision and guts. Although the global economic crisis has not passed, but the IT giants have tightened their belts in hand ...

Shrinking markets and dwindling profits have left the IT giants struggling to reach around in an increasingly crowded environment, scrambling for each other's turf, blurring the boundaries between them.　　Article | The reporter Wang The source | The July issue of the Journal of Excellence If, for the past three years, HP CEO Hurd wielding a big stick to demonstrate his ability to execute and cost control, he is now at a critical juncture to prove his vision and guts. Although the global economic crisis has not passed, but the IT giants have tightened their belts in hand ...

"Editor's note" is considered to be the next tuyere in the field of Internet of things, bringing together a large number of hardware and software manufacturers to join the competition, Cisco, Dell, IBM, At&t, Verizon, Oracle, Intel and even GE are all in the layout, they or the introduction of their own things networking system, or collaborate to form alliances that want their systems to be standard, but what do they need as developers? Nowadays, there are many companies interested in the Internet of things, although the internet market is very confusing, but today's technology giants are racing to ...

Large data processing technology is changing the current operating mode of the computer. We've got a lot of revenue from that because it's the big data processing technology that brings us search engine Google. 　　But the story is just beginning, and for several reasons, we say that large data processing technology is changing the world: * It can handle almost every type of data, whether it's microblogging, articles, emails, documents, audio, video, or other forms of data. 　　* It works very fast: practically in real time. * It's universal: because it's ...