十二、获取字符串的子串(substring、mid) substring(s,n,len);//从字符串s的左侧n处返回长度为len的字符串(从左往右截取) 1. 如果n为负数,则从字符串右侧n处返回长度为len的字符串(从左往右截取) 如果len没写,则从字符串s的n处一直截取到最后 mid(s,n,len);//功能与substring相同,不再介绍 1. 十三、...
The following example uses the LOWER function, the UPPER function, and nests the UPPER function inside the LOWER function in selecting product names that have prices between $11 and $20.SQL Másolás -- Uses AdventureWorks SELECT LOWER(SUBSTRING(EnglishProductName, 1, 20)) AS Lower, UPPER(...
SQL -- Uses AdventureWorksSELECTLOWER(SUBSTRING(EnglishProductName,1,20))ASLower,UPPER(SUBSTRING(EnglishProductName,1,20))ASUpper,LOWER(UPPER(SUBSTRING(EnglishProductName,1,20)))AsLowerUpperFROMdbo.DimProductWHEREListPricebetween11.00and20.00;
有关详细信息,请参阅 SUBSTRING(SSIS 表达式)。 复制 LOWER(SUBSTRING(Color, 2, 15)) 此示例将 CityName 变量中的值转换为小写字符。 复制 LOWER(@CityName) 另请参阅 UPPER(SSIS 表达式) 函数(SSIS 表达式)反馈 此页面是否有帮助? 是 否 提供产品反馈 | 在Microsoft Q&A 获取帮助 ...
In diesem Beispiel werden dieLOWER- und dieUPPER-Funktion sowie eine Schachtelung derUPPER-Funktion in derLOWER-Funktion verwendet, um die Produktnamen auszuwählen, deren Preis zwischen 11 $ und 20 $ liegt. USE AdventureWorks; GO SELECT LOWER(SUBSTRING(Name, 1, 20)) AS Lower, ...
SQL 型 V4.3.4 参考指南 SQL 参考 SQL 语法 普通租户(MySQL 模式) 函数 单行函数 字符串函数 LOWER 更新时间:2024-12-24 23:00:00 声明 LOWER(str) 说明 将字符串中的大写字母转化为小写字母。 该函数是LCASE()的同义词。 示例 obclient>SELECTLOWER('OBCLIENT您好!');+---+|LOWER('OBCLIENT您好!')...
SQL Code:SELECT lower(CONCAT('Hello', 'World')) AS "Lowercase String"; CopyOutput:Lowercase String| ---+ helloworld | Example LOWER(): Using with SUBSTRING() FunctionSQL Code:SELECT lower(SUBSTRING('HELLO WORLD' FROM 1 FOR 5)) AS "Lowercase Substring"; CopyOutput:Lowercase Substring...
The following example uses the LOWER function, the UPPER function, and nests the UPPER function inside the LOWER function in selecting product names that have prices between $11 and $20. Copy USE AdventureWorks; GO SELECT LOWER(SUBSTRING(Name, 1, 20)) AS Lower, UPPER(SUBSTRING(Name, 1, ...
in set (0.00 sec) mysql> select @urs:='abc@163.com',@urs1:=substring_index(@urs,'@',-1),substring_index(@urs,'@',-1); +---+---+---+ | @urs:='abc@163.com' | @urs1:=substring_index(@urs,'@',-1) | substring_index(@urs,'@',-1) | +---+---...
Parameters Return Value TypeDescription A stringThe string converted to lowercase. Related Pages JavaScript Strings JavaScript String Methods JavaScript String Search Browser Support toLowerCase()is an ECMAScript1 (JavaScript 1997) feature. It is supported in all browsers: ...