hi,
I'm trying to write a test application that queries a postgres database, which so far I've managed to do but in a limited way. I'm completely lost how to perform transactions and how to return the primary key id for newly inserted rows. hopefully by placing some code someone might be able to help,
require 'postgres'
db = PGconn.connect('localhost', 5432,'','','testdatabase','username','password') results = db.exec('select * from testtable')
I can then loop on results and display them using puts.
However suppose i wanted to issue the following statement but within a transaction? I simply can't find any documentation anywhere to help me
db.exec('delete from testtable')
in addition, suppose i was to insert a row into testtable and want the id returned back? i can't figure that out either.
can anyone help?