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Mysql table name case-insensitive configuration methods Mysql in linux is case sensitive by default. Whether mysql is case sensitive is determined by the lower_case_table_names parameter, where: 1) lower_case_table_names = 0 It is case sensitive (that is, it is not case sens
Preface: A basic knowledge of the UML use case diagrams and class diagrams that are recorded for learning. UML's use case diagram:The purpose of UML's use case diagrams: To help the development team to understand the functional requirements of the system in one by one visual ways. UML Use case diagrams contain elements
organization through a comprehensive lifecycle of processes (process definition and process instances).1. Research object and business use case diagramThe research object of this practice is the business process of office management.The business use case model is a model that describes the expected functionality of the business. As a core input model, the business use
Use Case Conceptual Analysis and staruml instances in UML In UML, use case is similarThe most simple function of case modeling is to express the functional requirements or behaviors of the system. In my understanding, Case modeling can be divided into use case diagrams and u
Using System;Using System. Text;Using System. Text. RegularExpressions; Namespace HKH. Common{/// /// Convert the case-insensitive format of RMB/// /// /// Public class clsRMB{Private clsRMB (){} # Region formatting /// /// Format (uppercase to lowercase)/// /// /// Public static double Format (string strRMB){Try{// Regular expression to verify whether the first digit is an Arabic number and determine the conversion format// 0.15 billion ---- mixed wr
Today, when you write code, you find an error in your code: $m _category->insert ($data); I called the Insert method of the $m_category object, and strangely, the Insert method name in my own frame is lowercase, but the first letter I call here is capitalized (the company's framework model class methods are all uppercase, sometimes used to go home to write code is not easy to write wrong).But it is very strange that this code in the previous test is passed, and there is no error or what, the d
Finally, it's almost over. This will be the last of the use Case Analysis series, resulting in the requirement specification to end the requirements analysis process. After seven previous jobs, we get the business use case model from the initial business use case acquisition, which is our business scope; After analysis, we get the business scenario, which is our
Case-when usage, simple case functionA simple case expression that determines the return value using an expression.Grammar:Case Search_expressionWhen Expression1 then RESULT1When Expression2 then RESULT2...When Expressionn then RESULTNELSE Default_resultSearches the case expression, using conditions to determine the re
5.1 Case Statement1. The case statement has the following structureCase SELECTORWhen EXPRESSION 1 then STATEMENT 1;When Expresssion 2 then STATEMENT 2;........When EXPRESSION n then STATEMENT N;ELSE STATEMENT n+1;END case;The reserved word case identifies the beginning of the case
Mysql Case sensitivity and checking rules When using mysql, you may encounter similar problems: Root @ chuck 07:42:00> select * from test where c1 like 'AB % ';+ ----- +| C1 |+ ----- +| Abc || ABD |+ ----- + Fuzzy match AB %. Strings starting with AB also appear in the result set, which is naturally considered to be case sensitive. In mysql, how is the big and lowercase sensitivity controlled? How are the d
Case has two formats: Simple case function and case search function. -- Simple case Function Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->Case sexWhen '1' then 'male'When '2' then 'female'Else 'others' end --
It is important to clarify the relationship between use cases when drawing a use case diagram. The relationships of use cases include generalization, extended, and include ). Include and extend are the most confusing. Next we will thoroughly clarify the relationship between the three Based on the instance. Basic ConceptsUse case diagram: the use case diagram show
4. Conditional update. For example, the following update conditions are available:For employees with a salary of more than 5000, the salary is reduced by 10%.Employees with salaries between 2000 and 4600 increase by 15%You can easily choose to execute two update statements, as shown below: -- Condition 1Update personnelSet salary = salary * 0.9Where salary >=5000;-- Condition 2Update personnelSet salary = salary * 1.15Where salary> = 2000 and salary However, it is not as simple as you think. Su
First, test analysis Test demand sources Development requirements Dr; Agreement standard requirements PR; user demand ur; case base requirements LR; competition demand CR; Sr. demand for succession;2. Test Item Analysis StepsA. Number of test items for analysis;B. Annotated source: Development documentation/Legal terms/Case Library numberC. Consolidate test items: Delete merged duplicate test
Reprint Test Case ReviewThe first thing to know is the definition of internal review, the internal review of the Test team, or the review within the project team. The review is defined differently and the content is not the same.I. Review classification: Test group Internal reviewThe review within the test group should focus on: The description of the test case itself is clear, whether there is amb
The use case diagram is used to describe the relationship between users, requirements, and system functional units. It shows a system function model diagram that can be observed by external users. [PURPOSE]: help the development team understand the functional requirements of the system in a visual manner. The use case diagram contains the following elements: 1. Participants) The user, organization, or exter
Examples: Copy codeThe Code is as follows: function case1 (num ){ Switch (num ){ Case 1: Document. writeln ("show 1 !! "); Break; Case 2: Document. writeln ("show 2 !! "); Break; Case 3: Document. writeln ("show 3 !! "); Break; Default: Document. writeln ("show others !! "); Break; } } Function case2 (num ){ Switch (num ){ C
/*************************************** **************************************** ******************************/-- Calculate the overtime hours for non-fixed employees/*************************************** **************************************** ******************************/Create proc recountworkhourfordf@ Begindate varchar (10 ),@ Enddate varchar (10)As------------- Delete the overtime record on the Operation Date ------------------------------------------------Delete from workhourdetail
Definition: Make sure that a class has only one instance and instantiate it and provide this instance to the entire system.Type: Creating class ModeClass Diagram: Class diagram Knowledge Points:1. Class diagram is divided into three parts, which is class name, attribute, method2. To 3. Modifier + on behalf of public,-representing Private, #代表protected, nothing represents the package is visible.4. The underlined property or method representation is static.5. Friends unfamiliar with the objects
Label:Frequently encountered problems, some are not particularly important but more depressed things. For example today this MySQL is case sensitive. First, the test results.Linux environment, not under Windows platform. The difference is very big. Attention.A picture wins thousand words mysql> show create table ac;+-------+--------------------------------------------------------------- ----------------------------------------------------------+| Tabl
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