Question

Possible Duplicate: How to only select numeric data from mysql?

I have a column which actually houses strings (type varchar) is there a way to select rows that only hold numbers in them?

E.G:

COLUMN1 COLUMN2 COLUMN3
1234    dassa   dasasfa
aaaa    fdsa    dsfa 
4dsf4   dfssa   aaddss 

The query should return

1234    dassa   dasasfa

Answer 1

You can do it by this query in mysql

select * from st where COLUMN1 REGEXP '^[0-9]+$';

the result will be

COLUMN1     COLUMN2     COLUMN3
1234        dassa       dasasfa