In recent days has been the problem of oracle-sql, involving a number of things that are not used in peacetime, and therefore here depressed for a long time. Now the problem has been solved, though not perfect. But let's share it with everyone.One of the row and column conversions: sum (case). Then.. else.. END) as statementThis may also be the first way we have encountered the transformation of the ranks. Clever use of summary and judgment statements
Excel ranks how to replace
Let's first assume that there is such a tabular data.
Now select the row data and press CTRL + C to copy it. Next select the first cell you want to convert to a column, and then click the Paste button on the toolbar, clicking Paste Selective to open an option window, check the "transpose" item, and make sure. Finally, you can delete the extra data in the line.
In addition to row and column data exchange,
This article for you to introduce the use of expression fixed form ranks, this is a kind of application in IE under the fixed ranks of the method, interested friends can learn, hope for everyone to help
This is a method of fixing the ranks in IE. its specific code is as follows:
Copy Code code as follows:
. Fixedtitlerow { position:relative; top:exp
It seems that I want to join the ranks of Ubuntu-general Linux technology-Linux technology and application information. The following is a detailed description. Author: Beyond the number
Someone has already published an article about "Ubuntu hard drive destruction", that is, they set the default value of hdparm's-B parameter to 1 in the laptop mode, this leads to frequent head resetting, up to 2 to 1 minute ~ 3 times. According to this calculation, i
"DB query analyzer" in "Zhongguancun online"In the Daily Download ranking, there are basically between 15th and 17th.
This is another one to commemorate.
In theZhongguancun online", This week's database category rankingDB query analyzer ranks 15th. It's not easy to rank 1 person!
The total number of downloads is86532 times.
Link:Http://xiazai.zol.com.cn/download_order/sub_550.html
The screenshot is shown below:
Original View structure:--------------------------| name | Subject | Score |--------------------------| Zhang San | English | 88 || Zhang San | Math | 90 || Zhang San | language | 90 || John Doe | language | 91 || John Doe | English | 88 || John Doe | Math | 99 |--------------------------After conversion:---------------------------| name | language | Math | English |---------------------------| John Doe | 91 | 99 | 88 || Zhang San | 90 | 90 | 88 |---------------------------Implementation code:Se
Popularity ranking of PHP development frameworks: Laravel ranks first. In project development, some architectures and codes are repeated. to avoid repeated efforts, various frameworks were born. In PHP development, selecting a suitable framework will help accelerate software development. Some architectures and code are duplicated. to avoid repeated efforts, various frameworks have emerged.
In PHP development, selecting an appropriate framework helps
4 reasons to tell you why Java ranks first
Java has a history of more than 20 years, even longer, depending on who you ask and how you calculate it. Ignoring its age, the Java ranking is still the first. Its practicality, performance, and backwards compatibility all highlight its value.
The beginning of the 2016 marks the 20-year history of our journey through Java. In fact, although Java claims to have been released on May 23, 1995 (the HotJava brows
programming languages, updated monthly, based on the number of experienced programmers, courses, and third-party vendors on the Internet. Rankings are calculated using well-known search engines (such as Google, MSN, Yahoo!, Wikipedia, YouTube, and Baidu). The index can be used to check whether your programming skills are still up to date or to make a strategic decision when starting to build a new software system that the programming language should take. The definition of the TIOBE index can b
many complex and potentially error-prone multithreaded code. As the jigsaw project starts for the release of JDK 9, we see modularity that makes large enterprise applications easier to build, deploy, and maintain. Also in JDK10, plans for developing new language features are already in progress, such as the type of value and so on.I am very much looking forward to Java getting the best programming language of the year for another 10 years.Link: http://www.codeceo.com/article/4-reason-java-no1.h
authorizeCreate Public for Wmsys. Wm_concat_impl; Create Public for Wmsys.wm_concat; Grant Execute on to Public ; Grant Execute on to public;or use the Listagg functionThe following are the analogy methodsSelectDeptno, Listagg (ename,',') withinGroup(Order byename) fromscott.empGroup bydeptno deptno PATH---------- -------------------------------------------------------------------------------- TenClark,king,miller -Adams,ford,jones,scott,smith -Allen,blake,james,martin,turner,wardSel
) time Warner (0.256 billion) and eBay (0.249 billion ).However, according to the number of visits per user, South Korea's NHN ranks the highest, with 33 visits per user; China's Tencent second (31); and China's rising star (Rising.com.cn) row 3 (29 ). Google ranks fourth, with 24 user visits. Next, Microsoft and Facebook tied for the fifth place, with 22 visits per user. Yahoo scored the sixth
Summary of "reprint" MySQL ranks conversion method[MySQL] row and column conversion change various methods of implementation summary (row variable report statistics, column variable row data record statistics, etc.)Mysql column Change statistics query, row to column statistics queryIn some databases there is a crosstab, but there is no such function in MySQL, but there are many friends on the Internet to find a solution, special post set the broad sen
Article title: Linux ranks second in Microsoft's threat list. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.
Microsoft began to take the Linux threats seriously. In fact, Microsoft has put Linux in the second place in the five major threat lists. At a recent conference call, Microsoft's chief financial officer Jo
1,850,904.Next, please go with IDC Comment Network to analyze the love name net to replace 51DNS rank rise reason. Compared with the previous period, it is known: the net net increase of 361,920, the number of domain name resolution increased to 812,095, 51DNS net minus 10,556, the number of domain name resolution fell to 572,267; meanwhile, the net of the Western Digital network sandwiched between the two 14,979, the number of domain name resolution rose to 588, 877, still stick to 6th place.
you, which may be incomplete, inconsistent, or technically impossible. But like Christmas kids, they put in some feelings and you can't simply ignore it.
The following chapters have risen to the project manager's point of view, although just as a member of the team, having these awareness is a good team consciousness, not simple I speak very well on behalf of others can cooperate with me happily.
6. Encourage the signature on your work, "This is what I wrote, I am responsible for
-------------------------------------------Sheet 365 85 70Lee 480 71 83(1) , through Aggregation function Mates Case Statement Implementation :SELECT * FROM (select name, course = ' language ', score = language from Test union ALL select Name, course = ' math ', score = Math from Test union ALL select Name, course = ' physical ', minutes Number = English from test) Porder by name, case course when ' language ' then 1 when ' math ' then 2 when ' English ' then 3 endName Course Score-------------
The Chinese version of the universal database query analyzer, "DB query analyzer" in "Zhongguancun online"In the Daily Download ranking, there are basically between 12th and 19th.
This is another one to commemorate.
In theZhongguancun online", This week's database category rankingDB query analyzer ranks 12th, the top one in the recent period.
The total number of downloads is86889 times.
Link:Http://xiazai.zol.com.cn/download_order/sub_550.html
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