STRING_SPLIT函数只能在MySQL 8.0及以上版本中使用。如果你使用的是旧版本的MySQL,就无法使用这个函数。 STRING_SPLIT函数返回的结果是一个表格,它包含一个名为value的列。你可以通过查询这个表格来获取拆分后的值。 STRING_SPLIT函数会自动去除拆分后值的前导和尾随空格。如果你不希望去除空格,可以考虑使用其他方法来...
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Many built-in functions exist in MySQL for doing different types of operations with the string data. Sometimes it is required to split the string data based on any delimiter when executing the SELECT query. The SUBSTRING_INDEX() function is used to split the string data retrieved by the query...
MySQL split string with a stored procedure You can also split a string in MySQL by using a stored procedure. You need to create the following procedure in your database: DELIMITER//CREATEPROCEDUREsplitString(INinputStringtext,INdelimiterCharCHAR(1))BEGINDROPTEMPORARYTABLEIFEXISTStemp_string;CREATET...
SELECT@studentid,[value]FROMSTRING_SPLIT(@result,','); -- 每题的得分 考虑,是否存在记录,存在删除,不存在,直接添加 -- delete from Answer where AnswerSudentId=@studentid; insertintoAnswer(AnswerSudentId,AnswerQuestionId,AnswerStudentResult,AnswerScore)selectstudentid,id,subname,dbo.f_GetAnswerScore...
查找、分割(split) 字符串 ELT() FIND_IN_SET() INSTR() LOCATE() 和 POSITION() REGEXP_INSTR() REGEXP_SUBSTR() SUBSTR() 和 SUBSTRING() SUBSTRING_INDEX() LEFT() RIGHT() 示例1 给定一个字符串表示:出版社 + 作者 + 书名 ;如:'电子工业出版社#孙卫琴#Tomcat与Java'根据分隔符# 拆分字符串 ...
Split comma-separated values and retrieve a value at certain position Surprisingly MySQL doesn’t have a dedicated function for this operations as opposed tosplit_partin PostgreSQL. Luckily it hasSUBSTRING_INDEX()function that does almost what we need. ...
Below is the code for the MS T-SQL function. Is there any way to do something similar in MySQL? CREATE FUNCTION ufSplitString ( @InString varchar(8000), @Delim char(1) ) RETURNS @Return table ( Position int identity, Token varchar(100) -- Maximum token size is 100 chars... ...
select split_str(‘ABC¼,,BA,,abc’,’,,’,3); //result: “,abc” (delimiter was still there) When I replaced LENGTH() to CHAR_LENGTH() everything worked fine. You may read about it here:http://dev.mysql.com/doc/refman/5.0/en/string-functions.html#function_char-length ...
定义函数中可能会遇到【ERROR 1418 (HY000): This function has none of DETERMINISTIC, NO SQL, xxx】错误,通过set global log_bin_trust_function_creators=1;设置即可解决,可参考:【Mysql自定义函数报错解决方法】 参考:【stackoverflow】How to split the name string in mysql? 这里只是一个说明,函数就是利...