[erlang-questions] ODBC memory usage

Dana.RUBINO <>
Tue Sep 30 11:42:35 CEST 2008

Hi all,

The ODBC trials and tribulations continue!

I have a test method as such:

get_tables() ->


    {ok, Ref} = odbc:connect("DSN=HWHU;UID=auid;PWD=apwd", [{scrollable_cursors, off}]),

    {selected, ColNames, Data} = odbc:sql_query(Ref, "select * from Test"),


Now I can execute the query and the entire table is brought back - great that's what I expect.

Also rather crudely it just returns the whole lot as Data (this is just a test after all).

The problem I have is that after the method returns, even though I have not assigned Data to anything (i.e. I just want it to echo to the screen for a visual sanity check) the erlang shell still seems to be making use of the memory?

How does garbage collection work in this instance?


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