R: RJDBC: use dbWriteTable with db2 to specify field types

Question

I am trying to write an R data frame to a table in a db2 data base. Does anyone know what additional argument I supply to the function dbWriteTable in order to specify the field types of the columns?

I found this similar question: RMySQL dbWriteTable with field.types, however, the solution doesn't seem to hold for db2.

Cheers

Answer 1

You can't supply fields types using dbWriteTable. JDBC is designed to hold many data bases, so it has a minimal data types mapping :

   integer --> INTEGER
   numeric --> DOUBLE PRECISION
   else    --> VARCHAR(255)

You should create you table using some sql request.