Varchar to number conversion for sorting

Question

I have a query ordered by column:

select * from mytable order by column asc — sort table

column type is varchar,

Answer 1

You can use this if you want to treat column as INT only:

SELECT * FROM mytable ORDER BY column+0;
1
10
11
12
13
100

Or this if you want to treat column as both INT and VARCHAR

SELECT * FROM mytable ORDER BY column+0, column; #this will sort the column by VARCHAR first and then sort it by INT

abc
xyz
1
10
11
12
13
100