问题
I have problem, I need to explode my input to my stored procedure, but don't know how I can do it.
My stored procedure has a VARCHAR(256) input which I need to split and generate insert statements.
i what to explode this varchar "1,2,3,7,8,9" so I need to split that string on "," and iterate through the result
回答1:
Yes, please see this forum thread on replicating the functionality in mysql that tsql provides.
That thread also discusses some of the downfalls of this method. Also, I think you want to be using VARCHAR(255) or just VARCHAR(MAX) because there is no benefit to a 256, it uses a 2 byte size prefix and yet only stores 256 characters.
Have you considered using xml and xpath syntax to extract the values instead? I think going forward this will become a more readable and maintainable method.
回答2:
Here is a split_string() function http://forge.mysql.com/tools/tool.php?id=4
回答3:
Try my SQL Library: http://ondra.zizka.cz/stranky/programovani/sql/mysql_stored_procedures.texy
来源：https://stackoverflow.com/questions/1742728/mysql-explode-split-input-to-stored-procedure