writing case statement

One way to "make something happen" is to evaluate an expression with a side effect. Injected assignments and function calls these expressions with side-effects can be used as separate statements, and this expression is also called an expression

SQL statement case when then else end returns a qualified value, sqlcase Case has two formats Simple Case functions and Case search functions: -- Simple Case function CASE sex WHEN '1' then' male 'when' 2' then' female 'else' other 'ends -- Case

Programming | control | Statement SIXTH Chapter CONTROL statement There is a statement that you can find in each programming language control flow statement. In this chapter, I introduce C # 's control statements, which are divided into two main

One, if statementIn PL/SQL, keywords such as if, then, else, elsif, endif are used to perform conditional logicSyntax format:if conditions 1 Then Statement 1elsif conditions 2 Then Statement 2Else Statement 3End If; Example 1: Practice If

Control | Statement > Sixth Chapter control statement (Rainbow translation) Source: http://www.informit.com/matter/ser0000002 Body: Sixth Chapter Control Statements There is a statement that you can find in each programming language control flow

The shell, as a scripting language, also contains other program control structures such as loops, branches, and so on, making it easier to perform more complex and powerful functions.Using the FOR Loop statementAt work, you often encounter a task

Case has two formats. Simple case functions and case search functions. -- Simple case Function Case Sex When '1' Then Male' When '2' Then Female' Else 'Others' End -- Case search function Case When Sex ='1' Then Male'

Keyword: case Case has two formats. Simple Case functions and Case search functions. -- Simple Case Function CASE sex WHEN '1' THEN 'male' WHEN '2' THEN 'female' ELSE 'others' END -- Case search function Case when sex = '1' THEN 'male' WHEN sex = '2'

SQL statement optimization improves database performance and SQL statement database performance In systems with unsatisfactory performance, apart from the fact that the application load exceeds the server's actual processing capacity, it is more

Tag: swift IOS objective-C Condition Statement It is usually very useful to execute specific code according to specific conditions. For example, when an error occurs, you may want to run additional code; or, when the input value is too large or too