I have two tables (simplified below)

Table A
x desc
-----
1 xxx
2 xxx
3 xxx

Table B
desc
-----
abc
def
ghi

I need to insert in to a third table, from these two tables
replacing xxx with abc, def, ghi

so that I have 9 columns inserted in to my third day

ie
Table B
x desc
------
1 abc
2 abc
3 abc
1 def
2 def
3 def
1 ghi
2 ghi
3 ghi

as there are no matching columns in these two tables, I don't know how to join them?
I tried using <> but that didn't seen to work

any help would be appreciated here
Thanks