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Oracle CASE expressions and CASE statements

The CASE expression is added to SQL in Oracle8i, and Oracle9i extends it so that the CASE expression and CASE statement can be used in PLSQL. The value matches the CASE expression. The CASE expression is added to SQL in Oracle8i, and Oracle9i extends it so that the

The usage of case when and SELECT case, the numeric parameter in the SUM function (turn) __ function

Case has two formats. Simple case function and case search function. Simple case function Case sex when ' 1 ' THEN ' man ' when ' 2 ' THEN ' Else ' other ' end--case search function case

MySQL is case sensitive. mysql is case sensitive.

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

What happened to the use case model: use case diagrams

--A useful discussion on use-case model and its application This is a discussion of use case model. How to build a use case model, how to write a use case description, what is the difference between it and the requirements specification, can it replace the requirement specification? Maybe here you can find the answer

Test Case Specification v2.0 and test case Specification v2.0

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

Use of the ORACLE case when and SELECT case

Tags: other procedures null limit grouping function relative return statisticsCase has two formats. Simple case function and case search function.--Simple Case function Case Sex When ' 1 ' Then ' men ' When ' 2 ' then ' women ' Else ' other ' END --case search func

PHPUnit entry case, phpunit entry case _ PHP Tutorial

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

Oracle Tutorial: CASE statement and CASE expression

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.

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

PL/SQL daily question: difference between a CASE statement and a CASE expression

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

MySQL table name default Windows case-insensitive in Linux case-sensitive

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

To enable ThinkPHP to support access using case-sensitive URLs, thinkphp case-sensitive PHP Tutorial

Enable ThinkPHP to support access using case-sensitive URLs. thinkphp is case-sensitive. To enable ThinkPHP to support access by case-sensitive URLs, thinkphp is described in this article as an example to enable thinkphp to support access by case-sensitive URLs. Share it with you for your reference. Specifically, Think

Mysql is case insensitive and mysql is case insensitive

Mysql is case insensitive and mysql is case insensitive The following table is used to differentiate the sensitivity of mysql to Case sensitivity in windows and linux by default. Operating System Table Name Variable name Field Value Windows Insensitive Insensitive Insensitive Linux Sensitive Sensitive Sensiti

Use Case: Patterns and blueprints (Use Case: mode and blueprint)

Use Cases can capture the funtion requirements of your systems and definate the border of the system. One use case can simulate one of the using ways of your system, that is, the event that triggered by users from outer system what sequence actions will be adpted. Each use case is a complete system usage method. Includes the description of internal events caused by user input and system response to these in

How to use ORACLE case when and SELECT case

Case statementCase SelectorWhen value1 and then action1;When value2 and then Action2;When Value3 and then Action3;.....ELSE Actionn;END case;Case expressionDECLARETemp VARCHAR2 (10);V_num number;BEGINV_num: = i;Temp: = Case V_numWhen 0 Then ' Zero 'When 1 Then ' one 'When 2 Then ' both 'ELSENullEND;Dbms_output.put_line

PHPUnit Introductory case, PHPUnit introductory case _php Tutorial

PHPUnit Introductory case, PHPUnit introductory case Understand PHPUnit This case is an introductory case for a unit test that creates a triangle, NetBeans environment, about building in this environment PHPUnit no longer described here, you can complete the construction work by referring to the following informatio

SQL statement-case when then else end, SQL-case

SQL statement-case when then else end, SQL-case Output the following results based on the preceding table information: The following are the database and table structure data: create table DeptSales(deptID int,SubjMonth int ,sales int ,deptname varchar(50)) insert into deptsales (deptid ,subjmonth,sales) values (1,1,55);insert into deptsales (deptid ,subjmonth,sales) values (2,1,66);insert into deptsal

OO System analyst Path--use Case Analysis Series (2)--use case type and granularity

Before formally discussing how to get the use case, I think there are two issues that can be explained well first, which is helpful for getting the use cases right. These two problems are the most confusing for beginners, but also the most difficult to master. One is the difference and usage between the various use case types, and the other is the granularity of the use

Mysql Case Sensitive search, mysql Case Sensitive

Mysql Case Sensitive search, mysql Case Sensitive Form: http://www.uphtm.com/database/257.html By default, MySQL search is case-insensitive (however, some character sets are always case-sensitive, such as czech ). This means that if you use col_name LIKE 'a % 'for search, you will get all columns starting with a or.

PHP variable names are case sensitive, and function names are case insensitive

PHP variable names are case-sensitive. function names are case-insensitive and are often ignored by new users. test the following. PHP variable names are case-sensitive: amp; lt ;? Php $ aaa = quot; phpddt.com quot; $ AA PHP variable names are case-sensitive. function names are

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