Displaying 2 results from an estimated 2 matches for "driverhttp".
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driver_tap
2010 Jul 23
7
fail rollback transaction with manual raise exception
With :
PostgreSQL 8.4 or postgresql-8.3
rails 2.3.4
pg 9.x or pg 8.x
I test this code:
=========================
class NkiBatch < ActiveRecord::Base
Bank.connection.transaction do
bank = Bank.new(:name => "ddsjdsjdsjk")
bank.save!
raise ActiveRecord::Rollback.new
end
end
and this:
=========================
class NkiBatch < ActiveRecord::Base
2007 Feb 21
3
Examples on how to READ/WRITE to database using R-Project
Hi,
We are working on a project on forecast modeling and would like to know if
there are any examples on how to READ/WRITE to a database (e.g. PostgreSQL)
using R-Project. I do have a sample R Script which takes input as files from
a directory and writes back output files to a directory. I would like to
convert this script to read from a database and write back the output to a
database.