Declare @S1 varchar(100) Select @S1=’C:/Windows/test.txt’ select right(@S1,charindex(‘/’,REVERSE(@S1))-1) ————————————- 显示结果: text.txt 利用函数REVERSE获取需要截取的字符串长度 substr() 例子: private void DDL
写SQL语句我们经常需要判断一个字符串中是否包含另一个字符串,但是SQL SERVER中并没有像C#提供了Contains函数,不过SQL SERVER中提供了一个叫CHAEINDX的函数,顾名思义就是找到字符(char)的位置(index),既然能够知道所在的位置,当然就可以判断是否包含在其中了。 通过CHARINDEX如果能够找到对应的字符串,则返回该字符串...
原数据为: 因为每个值后面都有一个共同的符合(分号),所以按分号进行定位 1)取第一个分号前的数值,比较容易 代码1为:left(remark,charindex(';',remark)-1) as zzno 或者:SUBSTRING(remark,1,charindex(';... 查看原文 SqlServer中截取(获取)字符串中特定字符分割的每个元素 ...
Applies to:Azure SQL Database, Azure SQL Managed Instance, Azure Synapse Analytics, Analytics Platform System (PDW), and Warehouse and SQL analytics endpoint in Microsoft Fabric The following example shows how to return only a part of a character string from a given start position. Since theleng...
SELECTCHARINDEX('SQLSHACK','SQLSHACK - SQLSHACK.COM',8) PATINDEX function in SQL queries The PATINDEX() function looks for the first occurrence of a pattern in the input string and returns the starting position of it. Syntax of PATINDEX() function: ...
SSIS-派生列 - substring/charindex-语句 技术标签: SQL-Server SSIS etl 派生列我有这个SQL代码: Select [Name] = case when CHARINDEX(''.'', [Name])>0 then LEFT([Name],CHARINDEX(''.'', [Name])-1) else [Name] end, [System] = case when reverse(SUBSTRING(REVERSE( System),1,CHARINDEX...
SQL Server How to use Substring [duplicate]Here we're usingSUBSTRINGwithCHARINDEXon theautocolumn. ...
In this article, we are going to discuss the SUBSTRING, PATINDEX, and CHARINDEX functions of T-SQL. These functions can be used to perform pattern matching. First, let me explain the SUBSTRING function and provide examples with it. SUBSTRING SQL Server SUBSTRING() function is used to extract...
SQL contains string - In this blog, I will explain how to check a specific word or character in a given statement in SQL Server, using CHARINDEX function or SQL Server and check if the string contains a specific substring with CHARINDEX function. An alternative to CHARINDEX() is using LIKE...
If either substring or string has a NULL value, the CHARINDEX returns NULL. If CHARINDEX() doesn't find substring in string then it returns 0. The return value is the position of the substring from the beginning of the string and not from the start_location. ...