Removing non-alphaNumerics in MySQL

Question

Do you know any easy way to remove (or replace) all non alphanumeric characters from varchar variable in Mysql?

something like String\'s replaceAll(\"[^a-zA-Z0-9]\",

Answer 1

this is the solution in sql server. But the concept goes like I have created a number table and splitted the charecters and then matching those against the regular expression.

Hope the same concept can be portrayed in mysql with a bit change and that hopefully u can do.

    declare @str varchar(50)
    set @str = '1ab3^45)(*%'

    declare @NumberTable table(id int)
    insert into @NumberTable(id) values(1)
    insert into @NumberTable(id) values(2)
    insert into @NumberTable(id) values(3)
    insert into @NumberTable(id) values(4)
    insert into @NumberTable(id) values(5)
    insert into @NumberTable(id) values(6)
    insert into @NumberTable(id) values(7)
    insert into @NumberTable(id) values(8)
    insert into @NumberTable(id) values(9)
    insert into @NumberTable(id) values(10)
    insert into @NumberTable(id) values(11)
    insert into @NumberTable(id) values(12)

    select NonAlphaChars = SUBSTRING(@str,id,1) from @NumberTable
    where SUBSTRING(@str,id,1) like '%[^a-z0-9]'

NonAlphaChars

^
)
(
*
%