dbGetRowCount {DBI}R Documentation

The number of rows fetched so far

Description

This value is increased by calls to dbFetch. For a data modifying query, the return value is 0.

Usage

dbGetRowCount(res, ...)

Arguments

res

An object inheriting from DBIResult.

...

Other arguments passed on to methods.

Value

a numeric vector of length 1

See Also

Other DBIResult generics: DBIResult-class, SQL, dbBind, dbClearResult, dbColumnInfo, dbFetch, dbGetInfo, dbGetRowsAffected, dbGetStatement, dbHasCompleted, dbIsValid

Examples

con <- dbConnect(RSQLite::SQLite(), ":memory:")

dbWriteTable(con, "mtcars", mtcars)
rs <- dbSendQuery(con, "SELECT * FROM mtcars")

dbGetRowCount(rs)
ret1 <- dbFetch(rs, 10)
dbGetRowCount(rs)
ret2 <- dbFetch(rs)
dbGetRowCount(rs)
nrow(ret1) + nrow(ret2)

dbClearResult(rs)
dbDisconnect(con)
[Package DBI version 0.5-1 Index]