commuter case

MySQL is case sensitive. mysql is case sensitive.Frequently encountered problems are not particularly important but depressing. For example, MySQL is case sensitive today. First, test the result. In Linux, not on windows. There is a big difference. Note.Figure 1 wins qianyan mysql> show create table Ac; + ------- + keys + | Table | Create Table | + ------- + keys

Test Case Specification v2.0 and test case Specification v2.0 1. Introduction The software test specification is written to provide a guide for testers during the preparation of test cases. Purpose Testing is an indispensable step for Software Delivery users. It has four purposes: 1) find as many bugs as possible in the system; 2) Pay attention to user needs; 3) analyze and evaluate software quality risk

Article Description: the direct principle and unified principle of user experience. The case of the direct principle is a bit like what you see and what you get, which gives the user a very intuitive presentation. For example, we commonly used QQ, when the other side is typing in the chat window will show "input". When the other side is using QQ Pinyin, we set up here will directly show QQ pinyin icon in there with the beat. The followin

Tags: mysql linux windowsUse a table below to differentiate how sensitive MySQL is to uppercase and lowercase by default in Windows and Linux Operating system Table name Variable name Field value Windows Not sensitive Not sensitive Not sensitive Linux Sensitive Sensitive Sensitive Linux does not introduce the first, because there is no actual use, the bottom of the next under the Windows modific

1. CodeSELECT a.id, A.activity_name, ( case when A.activity_end_time>Now () Then' Participation 'ELSE (A.activity_doubtand A.activity_doubtc.doubt) OR (a.activity_praiseand a.activity_praise> c.praise * 100) Then' Not compliant 'ELSE' Standards 'END) END) as state, c.driver_id, C.driver_phone, C.driver_name, C.countfrom (SELECT ID, Activity_name, Activity_end_time, Substring_index (Driver_award_condition, "-",

SELECTJournalentryid, Journalentryno, Capitalchain, DataSource, Entrysummary, Accountsubject, CaseAccountsubject when ' Accounts payable ' Then ' Carmen network supplier ' when ' Accounts receivable ' Then ' Carmen Customer ' when ' prepayments ' Then( Case whenJournalentryno like ' api% ' Then ' API prepaid customer ' whenJournalentryno =' CSC004 ' Then ' csc advance c

测试数据： wget http://files.grouplens.org/datasets/movielens/ml-100k.zip unzip ml-100k.zip2.1 Creating a data table for hive CREATE TABLE u_data ( userid INT, movieid INT, rating INT, unixtime STRING)ROW FORMAT DELIMITEDFIELDS TERMINATED BY ‘\t‘STORED AS TEXTFILE;2.2 Loading Data:LOAD DATA LOCAL INPATH ‘/home/hadoop/ml-100k/u.data‘OVERWRITE INTO TABLE u_data;2.3 Creating a weekday_mapper.py Scriptimport sysimport datetimefor line in sys.stdin: line = line.strip() userid, movieid, rating, uni

this cloud service is the first choice for many startups.Reflection on the projectThe start of the project was somewhat exploratory, and ended up being halted because of the high cost of the server.The advantage of this project is that many new technologies are used to ensure efficient interactive performance and scalability. Insufficient is the frequent interaction that causes network traffic to be too large and the network costs too high.I personally think this design is worth improving is th

https://zhuanlan.zhihu.com/p/25185856 "Kaggle Instance Analysis" Titanic machine learning from disasterhttp://blog.csdn.net/wiking__acm/article/details/42742961 Titanic:machine Learning from disaster (Kaggle Data Mining contest)http://blog.csdn.net/han_xiaoyang/article/details/49797143 must-readHttps://github.com/yew1eb/DM-Competition-Getting-Started/tree/master/kaggle-titanichttps://duyiqi17.github.io/2017/01/29/my-first-kaggle/Machine learning Case

1. Modal Box caseDemand:When you open a Web page there is a normal button, click the current button to display a background map, center and pop up a popup box, click on the X will close the current modal boxThe code is as follows:2. Simple message BoardDemand:When you enter content in textarea, click the Message button and it will be added to the browser.The figure is as follows:The code is as follows:3. Using the JS analog selector hoverCode Explanation:Mouse hover, the current bar color, here

PHPUnit entry case and phpunit entry case. PHPUnit entry case: phpunit entry case: PHPUnit introduction case: PHPUnit this case is about creating a triangle unit test entry case, comple

Case statements and case expressions are an important part of plsql Process Control. Although they are easy to use, they are easy to confuse. This article describes the case statement and case expression, and provides a demonstration to better understand the similarities and differences between the two and the precauti

In Linux, MySQL is case-insensitive and mysql is case-insensitive. MySQL in Linux Database Name, table name, column name, alias case-sensitive rules:1. The database name and table name are case sensitive.2. The table alias is case sensitive.3. The column name and column alia

Package Create type _ single case mode _ registration type; Import Java.util.HashMap; Import Java.util.Map; /** * Registered Singleton actually maintains an instance of a set of singleton classes, store these instances in a map (register) *, return directly from the factory for a single instance that has already been registered, and register for unregistered, and then return * @author PP */public Class Regsingleton {/** * register, used to hold all r

AIX install oracle10g Runinstallert Popup error case Environment: System: aix5300-08 Database: Oracle 10g (64bit) After the AIX client unloads Oracle software, reinstall Oracle software pop-up error: Check system permissions for Oracle users,/u01 file permissions 770 (rwxrwx---), all normal. Attempt to modify the reset and check correctly, run Runinstallert still eject as error. #umount/u01-umount operations on U01 Umount:error Unmounting/d

Article Description: do not follow the usual road: 22 "Diablo" Web design sharing. Since the launch of iOS 7, there has been a flat and bright color design trend. Now, the brightly colored flat design has filled our life, do we have some aesthetic fatigue? In the flat trend, there are still some maverick designers insist on their own way, in their works are more soft color scheme, the use of color tends to dark department!Although the "dark system" is not the trend, but their works ar

PL/SQL daily question: the difference between a CASE statement and a CASE expression: there are many different types of guinea pigs in the world, some of which have identifiable characteristics. For example, the "Abyssinians" skin has a pleated garlands www.2cto.com "Texels" with long curly hair. In contrast, the White Crested Guinea Pig on the header contains a White pattern (as expected). Each of the foll

Label:MySQL under Linux database name, table name, column name, alias casing rules:1, database name and table name are strictly case-sensitive2, table aliases are strictly case-sensitive3, column name and column alias in all cases are ignored case4. Variable names are also strictly case-sensitiveAttention:A, Linux under the default after MySQL installation: Diffe