[R] Java Exception error while reading large data in R from DB using RJDBC.
aajit75 at yahoo.co.in
Tue Oct 30 12:32:06 CET 2012
Java Exception error while reading large data in R from DB using RJDBC.
I am trying to read large data from DB table(Vectorwise), using RJDBC
I have tested the connection with small size data and was able to fetch DB
tables using same connection(conn as in my code).
Please suggest where am i going wrong or alternate option to solve such
issues while reading large DB table.
drv <- JDBC(paste(db_driver, sep = ""),
paste(db_jar_file, sep = ""),
conn <<- dbConnect(drv, paste(db_server, sep = ""),
paste(db_server_lgn, sep = ""),
paste(db_server_pwd, sep = ""))
s <- sprintf("select * from cypress_modeldev_account_info")
temp <- dbGetQuery(conn, s)
Error in .jcheck() :
Java Exception <no description because toString() failed>.jcall(rp, "I",
"fetch", stride)<S4 object of class "jobjRef">
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