TSfinddb(dbname=NULL, driverOrder=c("MySQL", "SQLite", "PostgreSQL"))TSfinddb tries to establish a connection to the indicated 
database using the drivers in the order specified. This attempt also requires
the corresponding TSdbi driver package (e.g., "TSMySQL", "TSSQLite", or
"TSPostgreSQL"). If the package cannot be loaded then the driver is skipped.
The first valid connection is returned. If no valid connection is found 
then NULL is returned.TSdbi-package,
dbConnect,
TSput,
TSget,
TSdates