search for: old_thing

This might seem like a silly quesiton but it''s been baffling me all day! I want to copy all records matching certain criteria from table A to table B. I know how to do his with SQL but not with RoR. -- Posted via http://www.ruby-forum.com/.

Hi everyone, I try to add many vectors (L1,L2,L3....) to many list objects (a.list, b.list....) in a workspace. Somethings like below, but it is not working. Any suggestions will be appreciated. Best, John lf=ls(pattern=".lst")  for (x in listfiles) {     dat=read.delim(x,header=F)     for (i in 1: lf) {     assign(i$add,as.numeric(dat[,3]))   #or i$add=as.numeric(dat[,3]