| DBIResult-class {DBI} | R Documentation |
Base class for all DBMS-specific result objects.
A virtual Class: No objects may be created from it.
Class "DBIObject", directly.
The main generator is dbSendQuery.
signature(res = "DBIResult", n = "numeric"): ... signature(res = "DBIResult", n = "missing"): ... signature(res = "DBIResult"): ... Meta-data:
signature(res = "DBIResult"): ... signature(conn = "DBIResult"): ... signature(dbObj = "DBIResult"): ... signature(res = "DBIResult"): ... signature(res = "DBIResult"): ... signature(res = "DBIResult"): ... signature(res = "DBIResult"): ... signature(conn = "DBIResult", name = "missing"): ... signature(object = "DBIResult"): ... signature(from = "DBIConnection", to = "DBIResult"): ... R-SIG-DB
See the Database Interface definition document
DBI.pdf in the base directory of this package
or http://developer.r-project.org/db.
DBI classes:
DBIObject-class
DBIDriver-class
DBIConnection-class
DBIResult-class
## Not run:
drv <- dbDriver("Oracle")
con <- dbConnect(drv, "user/password@dbname")
res <- dbSendQuery(con, "select * from LASERS where prdata > '2002-05-01'")
summary(res)
while(dbHasCompleted(res)){
chunk <- fetch(res, n = 1000)
process(chunk)
}
## End(Not run)