RMySQL (version 0.9-3)

dbConnect-methods: Create a connection object to an MySQL DBMS

Description

These methods are straight-forward implementations of the corresponding generic functions.

Side Effects

A connection between R/S-Plus and an MySQL server is established. The current implementation supports up to 100 simultaneous connections.

References

See the Database Interface definition document DBI.pdf in the base directory of this package or http://stat.bell-labs.com/RS-DBI.

See Also

MySQL, dbConnect, dbSendQuery, dbGetQuery, fetch, dbCommit, dbGetInfo, dbReadTable.

Examples

# create an MySQL instance and create one connection.
drv <- dbDriver("MySQL")

# open the connection using user, passsword, etc., as
con <- dbConnect(drv, group = "rs-dbi")

# Run an SQL statement by creating first a resultSet object
rs <- dbSendQuery(con, statement = paste(
                      "SELECT w.laser_id, w.wavelength, p.cut_off",
                      "FROM WL w, PURGE P", 
                      "WHERE w.laser_id = p.laser_id", 
                      "SORT BY w.laser_id")
# we now fetch records from the resultSet into a data.frame
data <- fetch(rs, n = -1)   # extract all rows
dim(data)