dbConnect {DBI} | R Documentation |
Connect to a DBMS going through the appropriate authorization procedure. Some implementations may allow you to have multiple connections open, so you may invoke this function repeatedly assigning its output to different objects. The authorization mechanism is left unspecified, so check the documentation of individual drivers for details.
dbConnect(drv, ...)
drv |
an object that inherits from |
... |
authorization arguments needed by the DBMS instance; these
typically include |
Each driver will define what other arguments are required, e.g.,
"dbname"
for the database name, "username"
, and
"password"
.
An object that extends DBIConnection
in a
database-specific manner. For instance dbConnect("MySQL")
produces
an object of class MySQLConnection
. This object is used to direct
commands to the database engine.
dbDisconnect
to disconnect from a database.
if (require("RSQLite")) { # SQLite only needs a path to the database. Other database drivers # will require more details (like username, password, host, port etc) con <- dbConnect(RSQLite::SQLite(), ":memory:") con dbListTables(con) dbDisconnect(con) }