CASE() case搜索函数 1SELECT*,CASE2WHEN分数>=90THEN'优'3WHEN分数>=80AND分数<90THEN'良'4WHEN分数>=60AND分数<80THEN'中'5WHEN分数>=0AND分数<60THEN'差'END6fromuser_03 简单case函数 1SELECT*,CASEgender2WHEN'man'THEN'男'3WHEN'woman'THEN'女'END4ASgenderFROMuser_02
Example# SELECT UPPER('HelloWorld') --returns 'HELLOWORLD' SELECT LOWER('HelloWorld') --returns 'helloworld' Got any SQL Question?# Ask any SQL Questions and Get Instant Answers from ChatGPT AI: PDF- DownloadSQLfor free PreviousNext
MySQL中的UPPERCASE函数用于将字符串中的所有字母转换为大写。这个函数在处理数据库中的文本数据时非常有用,尤其是在需要统一数据格式或者进行不区分大小写的比较时。 相关优势 统一格式:在处理用户输入或者外部数据时,使用UPPERCASE可以确保所有文本数据的一致性。 简化查询:在进行不区分大小写的搜索时,可以先将字段值...
MySQL, as with other database servers, has a variety of text functions including functions for converting a string to upper case or to lower case. This post looks at how to convert a string to lower case or upper case with MySQL. For the examples used in this post we have a simple ta...
Question: I've migrated a SQL Server database to PostgreSQL , but the table names and column names - from the original SQL Server database were a mixture of upper case and lower case. The tables were migrated but the table names remained with the mixture of the Upper case and lower ...
这是 LOWER 函数的反函数。 UPPER 保留不变的数字、标点符号和前导或尾随空格。UPPER 不强制将数字解释为字符串。...也可以使用 UPPER() 方法调用从 ObjectScript 调用此函数:$SYSTEM.SQL.Functions.UPPER(expression)UPPER 是字母大小写转换的标准函数,而不是排序规则...此示例使用 UPPER 语法,该语法使用空格而...
WHERE UPPER( firstname ) = <cfqueryparam value="#UCase(url.firstname)#" cfsqltype="cf_sqlvarchar"> </cfquery> In this example (searching for a firstname) it doesn't really make sense to convert to upper case, assuming the first name is stored something likePete, and the user input...
How do I make text uppercase on a computer? To make text uppercase on a computer, you can use the "Caps Lock" key to enable uppercase mode temporarily, or you can select the text and apply the "Uppercase" formatting option available in most word processing software. ...
I think I started off my programming against t-sql pretty much doing it First Character Upper case lower case everything else. Lately though since .net I have been using upper case more. Especially when I have my sql command and dynamic parameters set in code. For me it is more readable...
This SQL Server tutorial explains how to use the UPPER function in SQL Server (Transact-SQL) with syntax and examples.Description In SQL Server (Transact-SQL), the UPPER function converts all letters in the specified string to uppercase. If there are characters in the string that are not ...