mysql 字符串轉多行數據

數據存儲為 

 

 

 實現效果

 

 

 sql：

SELECT
    a.id,
    a.code,
    SUBSTRING_INDEX( SUBSTRING_INDEX( a.monitor_content, ',', b.id + 1 ), ',',- 1 ) AS ids 
FROM
    process_monitoring AS a
    JOIN process_monitor_content AS b ON b.id < ( length( a.monitor_content ) - length( REPLACE ( a.monitor_content, ',', '' ) ) + 1 )
        where a.code ='4203376628674604072';

process_monitor_content 表為自增序號表

格式ID 自增大於需要分組的字段就可以

 

參考

https://www.cnblogs.com/JMrLi/p/11320273.html