Getting a ResultSet/RefCursor over a database link
- by JonathanJ
From the answers to http://stackoverflow.com/questions/1122175/calling-a-stored-proc-over-a-dblink it seems that it is not possible to call a stored procedure and get the ResultSet/RefCursor back if you are making the SP call across a remote DB link. We are also using Oracle 10g.
We can successfully get single value results across the link, and can successfully call the SP and get the results locally but we get the same 'ORA-24338: statement handle not executed' error when reading the ResultSet from the remote DB.
My question - is there any workaround to using the stored procedure? Is a shared view a better solution? Piped rows?
Sample Stored Procedure:
CREATE OR REPLACE PACKAGE BODY example_SP
IS
PROCEDURE get_terminals(p_CD_community IN community.CD_community%TYPE,
p_cursor OUT SYS_REFCURSOR)
IS
BEGIN
OPEN p_cursor FOR
SELECT cd_terminal
FROM terminal t, community c
WHERE c.cd_community = p_CD_community
AND t.id_community = c.id_community;
END;
END example_SP;
/
Sample Java code that works locally but not remotely:
Connection conn = DBConnectionManagerFactory.getDBConnectionManager().getConnection();
CallableStatement cstmt = null;
ResultSet rs = null;
String community = "EXAMPLE";
try
{
cstmt = conn.prepareCall("{call example_SP.get_terminals@remote_address(?,?)}");
cstmt.setString(1, community);
cstmt.registerOutParameter(2, OracleTypes.CURSOR);
cstmt.execute();
rs = (ResultSet)cstmt.getObject(2);
while (rs.next())
{
LogUtil.getLog().logInfo("Terminal code=" + rs.getString( "cd_terminal" ));
}
}
