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return_expr2 whencomparison_exprn Then return_exprnELSE else_expr]
END
--Query the employee information for the department number 10,20,30, and if the department number is 10, print -1.1 times times its work, department 20th, 1.2 times times, 30th department, 1.3 times Times Select employee_id,last_name,department_id, case department_id when ten then salary*1.1 When salary*1.2 Else salary*1.3 End Revised_salary from Employees where department_id in (10,20,30)
then return_expr2When comparison_exprn then return_exprnELSE else_expr]
END
--Query the employee information for department number 10,20,30, and if the department number is 10, print--1.1 times times its work, department number 20th, 1.2 times times, 30th department, 1.3 times TimesSelect employee_id,last_name,department_id,Case DEPARTMENT_ID when ten then salary*1.1When salary*1.2else salary*1.3End Revised_salaryFrom Employeeswhere department_id in (10,20,30)
②decode
Common page debugging methods for java web entry-level development, javaweb
Here we will introduce the common code adjustment methods in Java web entry-level development (for reference only );
Tool: chrome (the higher the version, the better );
Java web entry-
PHP entry-level tutorial: teaches you how to quickly learn the PHP language. LieHuo. Net programming document This article introduces some PHP entry-level tutorials: quick learning of PHP. PHP syntax. 1. embedding method: like ASP %. can PHP be? Php or
Bkjia. ComPHP entry-
Altogether 4 documents:
List display files: site/links/img0.html
Add picture file: site/links/img0_add.html
Add Save picture file: site/links/img0_add_up1.chtml
Delete picture file: site/links/img0_del.chtml
in the Light Open e-commerce system (Enterprise entry-level business website) under the site/links/directoryEasily implement picture substitution1, List display file code intr
ZBC12 becomes the entry-level host of IBMLinux. the Linux Enterprise Application-Linux server application information is as follows. Source: IT168
IBM positions the new direction of its mainframe business growth as cloud computing, analysis, and mobile computing. The latest zBC12 is an upgraded version of IBM's entry-level
Android Studio entry-level tutorial (1), androidstudioStatement
AS is a mainstream tool for Android development, but eclipse is used for school teaching. Many people do not know how to get started. I can see a very well-organized tutorial on the Internet. I will repost it and hope it can help people who need it.
Life One: http://www.cnblogs.com/smyhvae/
Source: http://www.cnblogs.com/smyhvae/p/4390905.html
Change website Logo image --- light open e-commerce system (enterprise entry level B2C website), logob2c
A total of 2 files:
Display and upload files: site/links/img_logo.html
Save the image file: site/links/img_logo_up1.chtml
InLight open e-commerce system (enterprise entry level B2C website)Under the site/links/
being out of date, as this article is updated with the version of Android Studio.SeriesAndroid Studio Entry-level tutorial (i)Android Studio Entry-level tutorial (ii): Create a new project that belongs to you and install the Genymotion emulatorAndroid Studio Entry-
in the requirements will be GA,PU,UV analysis of the operations department! All data mining positions are written in the requirements only hadoop,spark,etl of the work of the Data Warehouse! Other self-view, data mining has several kinds of positions: Advertising CTR estimate, machine learning, referral system, natural language processing and so on. Choose it yourself. Anyway, getting started can be a try. In short, the entry is easy to go into diff
Pick up a blogFile: Add button in site/links/img0.html (line 14th)EffectClick "[Add]" to go to file: site/links/img0_add.html (in the site/links/directory of the light- Open ecommerce system (Enterprise entry-to-business website) FormName FieldLink Address fieldpicture Field(Note the width and height of the picture)the address returned after saving(Hide properties)Commit ActionJS script to submit a checkvar save = document.forms[' Save '];function dos
In this example, we will build an entry-level Web application using the Spring MVC framework. Spring MVC is one of the most important modules of the spring framework. It is based on a powerful spring IOC container and makes full use of the container's characteristics to simplify its configuration. Directory
What is the MVC framework
Dispatcher Servlet (Spring Controller)
Spring Getting Star
"Editor's note" This is an entry-level tutorial , recommended for Java developers to read, and a simple example of how to develop Java in Docker is shown in this article. You don't need maven, you don't need a JDK, you just have to give your little buddy a dockerfile and leave the rest to Docker to do it. This week, I had a meeting with Anna, Stephan and Timo in W-jax, Munich, about enterprise technology, e
Easy modification of website name-light E-commerce system (enterprise entry level B2C website), E-commerce system B2C
By modifying the website name, the system can be customized to any user, satisfying the user's feeling. This is a very clever and useful small function.
The procedure is as follows:
Introduce permission judgment (the Administrator has the permission to modify the website name)
Read the web
For alumni who have just contacted the deep learning, they may encounter computer configuration problems, such as graphics card model, memory capacity, processor model, etc. Good computer configuration, such as GPU accelerated graphics card, is able to effectively shorten the training time of the algorithm, which allows people to see the results of the algorithm as soon as possible, but also to facilitate the timely adjustment of the depth of learning parameters. However, as a beginner of the de
Embedded Linux entry-level learning plan
I don't know if I can engage in embedded systems in the future. I have a good idea of reading the article. I will post it later.The arm + LINUX route focuses on the embedded Linux operating system and its application software development goals:(1) master the structure and principle of mainstream embedded microprocessor (initially s
Springmvc Study Notes (5)-Summary of entry-level programsSpringmvc Study Notes (5)-Summary of entry-level programs
Get started with springmvc front-end controller, processor er, processor adapter, and view parser. The complete configuration file of the non-Annotation of the Entry
I am a newbie to thinkphp entry-level question. I encountered a problem when I tested thinkphp today. please kindly advise: the code is very simple and there is only one IndexAction (automatically generated ), there is an index method and a test method in it. the url mode I use is the rewrite mode ('URL _ Model' nbsp; = gt; n a thinkphp entry-
log), so the B machine immediately start its own Nginx service take over a machine workexperiments . in the A firewall rule is added on the server host to deny PingIptables-a input-p icmp-j DROPclient browser Access 192.168.1.106Navigation Device Show "This is heartbeat server slave 2222" NormalTest 3.when we delete A machine just added the firewall rule ,B machine detects that a machine survives, read itself/etc/ha.d/ha.cf file auto_failback on entry
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