Thanks. I had ruled that style of option out as this is small one-off, specific task.
On Friday, 24 May 2013 21:41:45 UTC+2, Mark wrote: > > You might want to consider a federated database tool like http://teiid.org > It would be pretty easy to link DB2 and SQL Server. Hooking up the Atom > feed would require a bit more work but probably not too bad. > > On Friday, May 24, 2013 7:55:17 AM UTC-7, Mond Ray wrote: >> >> I am starting out to use Clojure to combine and verify data between DB2 >> on a Mainframe, SQL Server and an Atom Feed. Yes, it's such fun working in >> a start-up ;-) >> >> Database wise, all is connecting OK after some Leiningen shenanigans and >> I am now stuck on the mapping part ;-) >> >> The code is below. I want to generate a set of maps that show the >> following: >> >> #({:a2pid 269, :uuid nil} >> {:a2pid 270, :uuid nil} >> {:a2pid 258, :uuid nil} >> {:a2pid 261, :uuid nil} >> {:a2pid 251, :uuid E7D4262C-62B3-4129-9CE4-B342DC1C39FC}) >> >> The idea is to have a list of maps that can show where there are gaps >> between the two DBs and, coming next, the Atom feed. >> >> It is essentially a join operation - and maybe that's what I need but I >> cannot figure out where to plonk the magic words. >> >> (defn a2p-records-by-date [query from-date to-date dh-sub-query] >> (sql/with-connection db2 >> (sql/with-query-results rs [query from-date to-date] >> (doseq [row rs] (println (str " " (:project_id row) (dh-sub-query >> (:project_id row)))))))) >> >> (defn dh-records-by-a2p-id [query a2p-id] >> (sql/with-connection mssql >> (sql/with-query-results rs [query a2p-id] >> (dorun (map #(print (:project_uuid %)) rs))))) >> >> (defn dh-sub-query [a2p-id] (dh-records-by-a2p-id "select PROJECT_UUID >> from PROJECT where A2P_PROJECT_ID = ?" a2p-id)) >> >> (a2p-records-by-date "select project_id from PROJECT where timestamp > ? >> and timestamp < ?" "2012-03-02" "2012-03-07" dh-sub-query) >> >> The output looks like this, so I am close! >> >> 269 >> 270 >> 258 >> 261 >> E7D4262C-62B3-4129-9CE4-B342DC1C39FC 251 >> >> Can anyone help me out about how to generate the maps? >> >> This is just the start as I have many queries to run for many entities, >> so doubtless I will be back again ;-) >> >> Thanks in advance >> >> Ray >> > -- -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups "Clojure" group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
