Clustering and writing back results into MySQl Database

Hi

i am making Text clustering and i got 5 clusters with text.
So i want write back into the MYSQL Database to each. Im not sure where to connect the write database.

For example.
t1 is cluster 1
t2 is cluster 2
t3 is cluster 3

So i have a new Column in my table and every data should get a cluster.

Regards,
Ash