multiple case statements

IntroductionAs developers creating data-driven Web applications, we 've all written more than our fair share of SQL statements. if I had a nickel for every SELECT statement or UPDATE statement I 've written in my six years as a Web developer, I 'd

Use case statements in Shell programming, and use case statements in shell programming Hello everyone, today we bring you the use of Shell programming case statements! In fact, the case statement is quite understandable. In shell programming, the if

In the C ++ programming language, some judgment statements exist, such as the if and C ++ switch-case statements. In this article, we will introduce the basic usage of the C ++ switch-case statement in detail, hoping to help you. Detailed

Find slow SQL statements in MySQL and mysqlsql statements How can I find slow SQL statements in mysql? This may be a problem for many people. MySQL uses slow query logs to locate SQL statements with low execution efficiency. When the --

　　 　　 Case has two formats. Simple Case functions and Case search functions.-- Simple Case FunctionCASE sexWHEN '1' THEN 'male'WHEN '2' THEN 'female'ELSE 'others' END-- Case search functionCase when sex = '1' THEN 'male'WHEN sex = '2' THEN

How to use case in SQL Case has two formats. Simple case function and case search function. Copy Code code as follows: --Simple Case function Case Sex When ' 1 ' THEN ' male ' When ' 2 ' THEN ' woman ' Else ' other '

PHP + Mysql implements the function of generating SQL statements with multiple keywords and fields, mysqlsql. PHP + Mysql provides a function for generating SQL statements using multiple keywords and fields. this example describes how to generate

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

Program Flow At its simplest level, the Python interpreter operates in a similar manner, starting at the top of the program, and then executing the program statement sequentially, line by line. For example, listing 1 shows a few simple statements.

First summarize the value types and reference typesTeacher's most classic sentence: The value type of the variable and the value is one of the reference types of variables and values are separate.The variables and values of the value type are the