Hello,

I am trying to identify how to use inlist with external data. Currently, I have two separate data sets. The first data set is as follows:
id a1 a2 a3 a4 a5 a6 a7 a8 a9
1 X21 X453 X324 D345 F54 G45 G3 V343 V453
2 D324 V32 D234 VGB23 D23 G23 V23 G23 GRD23
3 D23 G32 E32
4 D23 E3
5 G23 D23 DD43
7 DF32R A32
8 B23 DFS32 F32
9 G2 D3 G23 G32 D23
9 G223 T23
The other data set is as follows and stored in an excel form:
G32
G23
G123
G32
G3
G2
G212
G32
D23
ED23
I'd like to identify people who have the same values in the second data set (e.g., G23 or G32). However, the issue is that the number of row in the second data set is about 10,000. Thus, I'd like to know how to create an efficient code. I'd be very glad if you could provide some thoughts.

Thank you!