Dear Experts

Table1 has only one field as

code c(7)

data in table as

1
11
1101
1101001
1101002
1101005
1101025
1101088

If m.var1=1101002 then
How to verify the Root value in FOUR charcters against m.var1 is exists.

I want to check if 1101 is exists or not.

Please help