步骤3:编写拆分函数 CREATEFUNCTIONdbo.SplitString(@StringNVARCHAR(MAX),@DelimiterCHAR(1))RETURNS@OutputTABLE(Item NVARCHAR(MAX))ASBEGINDECLARE@StartINT,@EndINT;SET@Start=1;SET@End=CHARINDEX(@Delimiter,@String);WHILE@S
SELECT * FROM STRING_SPLIT(@String,@Delimiter) The result will be like: Unicode Separator for STRING_SPLIT Function Both the string that will be delimited and the separator can take Unicode values by defining the string as NVARCHAR and the delimiter as NCHAR. In the following example, a strin...
select substr('abcde',1,3);从第一个截,截三个长度 select substr('wfeww',-2);从尾部截,截两个长度 可以用于比如截取身份证后几位操作 字符串和映射--split_to_map---split_to_multimap split_to_map(string,entryDelimiter,keyValueDelimiter)→ map<varchar, varchar> SplitsstringbyentryDelimiterandke...
Transact-SQL reference for the STRING_SPLIT function. This table-valued function splits a string into substrings based on a character delimiter.
* 查出来又是所有的字段。 可以通过如下SQL查询表中所有字段通过逗号连接，然后复制出来进行select查询...
split_part(string, delimiter, index) eg:select split_part('325f243f325f43','f', 4) 43 1. 2. 3. 4. 字符串定位strpos position 定位函数-获取字符串中某个字符第一次出现的位置,从1开始: strpos(string, substring) → bigint position(substring IN string) → bigint ...
@Delimiternchar(1) ) RETURNS TABLE AS RETURN(SELECTItem=valueFROMSTRING_SPLIT(@List, @Delimiter)); GO Error message: Msg 208, Level 16, State 1, Procedure SimpleSplitFunction, Line 8 Invalid object name 'STRING_SPLIT'. Assuming there is a database on the instance that is in compat level...
SQL Server How to split string using delimiterto trim off the leading space that will appear for...
split_part(str, delim, partNum) 参数 str:要拆分的STRING表达式。 delimiter:用作部分分隔符的STRING表达式。 partNum:选择要返回的部分的INTEGER表达式。 返回 一个STRING。 如果partNum>= 1:将返回从str开始计数的partNum部分。 如果partNum<= -1:将返回从str末尾计数的abs(partNum)部分。
Here’s the result of the query: firstnamelastname Ann Smith Mark Twain Brad Green Discussion: The function SUBSTRING_INDEX() takes 3 arguments: the source string, the delimiter, and the occurrence count of the delimiter. The source string is the string that we would like to split. The de...