dbSendQuery and dbSendUpdate submit a SQL query to the
database. The difference between the two is only that
dbSendUpdate is used with DBML queries and thus doesn't return
any result set.
dbGetTables and dbGetFields are similar to
dbListTables and dbListFields but the result is a data
frame with all available details (whereas the latter return only a
character vector of the names).
dbSendUpdate (conn, statement, ...)
dbGetTables (conn, ...)
dbGetFields (conn, ...)