RPresto (version 1.4.7)

presto_default: Check if default database is available.

Description

presto_default() works similarly but returns a connection on success and throws a testthat skip condition on failure, making it suitable for use in tests.

RPresto examples and tests connect to a default database via dbConnect(Presto(), ...). This function checks if that database is available, and if not, displays an informative message.

Usage

presto_default(...)
presto_has_default(...)

Arguments

...

Additional arguments passed on to DBI::dbConnect()

Examples

if (presto_has_default()) {
  db <- presto_default()
  print(dbListTables(db))
  dbDisconnect(db)
} else {
  message("No database connection.")
}