As of version 0.5-0, RMySQL functions have different names
as suggested by the R/S-Plus database interface DBI.  

prior to 0.5             DBI 0.1-4 / RMySQL 0.5-0 and later 
----------------------   ----------------------------------
dbManager                dbDriver
dbConnect                dbConnect
dbExecStatement          dbSendQuery
dbExec                   dbSendQuery
quickSQL                 dbGetQuery
fetch                    fetch
getTables                dbListTables
getConnections           dbListConnections
getResultSets            dbListResults
getConnection            NA
getFields                dbColumnInfo         # for a result set 
getFields                dbListFields         # for a table name in a conn
getStatement             dbGetStatement
getRowsAffected          dbGetRowsAffected
getRowCount              dbGetRowCount
hasCompleted             dbHasCompleted
getInfo                  dbGetInfo
describe                 summary
getTableFields           dbListFields
getTable                 dbReadTable
assignTable              dbWriteTable
existsTable              dbExistsTable
SQLDataType              dbDataType
make.SQL.name            make.db.name
isSQLKeyword             isSQLKeyword
removeTable              dbRemoveTable
getException             dbGetException
load                     dbDriver
unload                   dbUnloadDriver
commit                   dbCommit
rollback                 dbRollback
callProc                 dbCallProc
close                    dbDisconnect
close                    dbClearResult

getVersion               NA
getCurrentDatabase       NA
getNumRows               NA
getNullOk                NA
getNumCols               NA
getDatabases             NA
getTableIndices          NA

NA                       dbGetDBIVersion