Displaying 2 results from an estimated 2 matches for "db2env".
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benv
2009 Jan 23
0
Appending objects created using filehash package
...s rewriting
the entire object.
Sample code: =================================================
# Setting up the database
library(filehash)
A <- data.frame(a=c("abcde", "fghij", "klmno"), stringsAsFactors=FALSE)
dumpDF( A, dbName="myTestDB")
envTest <- db2env(db="myTestDB")
ls(envTest)
with(envTest, a)
# Appending to object a, but basically rewriting it...
envTest$a <- c(envTest$a, "HELLO", "GOODBYE")
with(envTest, a)
If anyone has a suggestion on how to append to an object without completely
rewriting it, I would rea...
2012 May 04
2
Can't import this 4GB DATASET
...###/*MY ATTEMPT USING FILEHASH*/###
#First, try and upload the 29 row dataset (the tiny subset of the whole
dataset).
install.packages("filehash");require(filehash)
dumpList(read.table("dataset2.txt",skip=6),dbName="db02") #Note that DumpDF
also works.
env02 <- db2env(db="db02")
with(env02,V1)
#
[1] 10001 10001 10001 10001 10001 10001 10001 10001 10001 10001 10001 10001
10001 10001 10001 10001 10001 10001 10001 10001 10001 10001 10001 10001
10001 10001
[27] 10001 10001
#
with(env02,V2)
#
[1] 01/10/1986 01/13/1986 01/14/1986 01/15/1986 01/16/1986 01...