❮Previous❮ SQL Server FunctionsNext❯ ExampleGet your own SQL Server Extract 3 characters from a string, starting in position 1: SELECTSUBSTRING('SQL Tutorial',1,3)ASExtractString; Try it Yourself » Definition and Usage The SUBSTRING() function extracts some characters from a string. ...
The substring() function retrieves the first 50 characters from the string value retrieved by the string(). This is a partial result: Másolás ProductModelID Result --- --- 19 <Prod>Our top-of-the-line competition mountain bike.</Prod> 23 <Prod>Suitable for any type of riding, on ...
SQL Server SUBSTRING Functions SUBSTRING(string, start, length)函数,是处理字符数据获取子字符串。第一个参数是将要处理的字符串,第二个参数是指定位置开始,最后一个参数是截取长度。 例子: 原数据,如'Mr. John' SELECTSUBSTRING([Name],4,5)AS[Name]FROM[dbo].[Member] 执行结果 'John'。
1. SUBSTRING 函数 SUBSTRING 函数是 SQL Server 中最常用的字符串处理函数之一,它可以从一个字符串中截取指定长度的子字符串。 SUBSTRING 函数的语法如下: SUBSTRING(expression,start,length) 1. expression:要截取的字符串表达式。 start:开始截取的位置。 length:截取的长度,可选。 下面是一个示例,展示如何使用 ...
Applies to:SQL Server Returns part of the value of$sourceString, starting at the position indicated by the value of$startingLoc,and continues for the number of characters indicated by the value of$length. Syntax fn:substring($sourceString as xs:string?, $startingLoc as xs:decimal?) as xs:...
语法:SUBSTRING(expression, start, length) 描述:返回 SQL Server 中的字符、二进制、文本或图像表达式的一部分。 示例:SELECTSUBSTRING('截取子字符串',, 1) AS Column1, SUBSTRING('截取子字符串',, 4) AS Column1, SUBSTRING('截取子字符串',, 3) AS Column1; ...
SQL Server String Functions FunctionDescription ASCIIReturns the ASCII value for the specific character CHARReturns the character based on the ASCII code CHARINDEXReturns the position of a substring in a string CONCATAdds two or more strings together...
CREATEFUNCTIONfn_COMMON_SubDept(@STRNVARCHAR(500),@InputINT)RETURNSNVARCHAR(50)ASBEGINDECLARE@iintDECLARE@RESULTSTRNVARCHAR(50)DECLARE@RIGHTSTRNVARCHAR(500)SET@i=1SET@RIGHTSTR=@STRWHILE@i<=@InputBEGINSET@RESULTSTR=SUBSTRING(@RIGHTSTR,0,iif(CHARINDEX('>',@RIGHTSTR)=0,LEN(@RIGHTSTR)+1,CHARIND...
function is used to extract a part of a string. This function is available in both MS SQL Server and MySQL. The MySQL SUBSTRING function provides more functionality than MS SQL Server SUBSTRING function. In MySQL you can also use SUBSTR function which is Synonym for SUBSTRING function ...
Transact-SQL reference for the SUBSTRING function. This function returns a portion of a specified character, binary, text, or image expression.