从 SQL 服务器中的链接服务器上的存储过程获取返回值

Question

I have a stored function on an Oracle DB, that I'm executing from a procedure in SQL Server. The function in Oracle returns a boolean value. The trouble I'm having is getting that value once it's executed.

Here's the call:

EXEC  ('DECLARE
            x boolean;
        BEGIN
            x := dba.ws_pack.truncate_table;
        END;'
) AT DBLINK;

Which works for executing the function and truncating the table.

So any idea how I get the value of x, or how I can execute this and get the return value directly?

Answer 1

EXEC ('BEGIN ? := dba.ws_pack.truncate_table; END;', @ReturnValue ) AT DBLINK;

Answer 2

Here's what I got to work:

select @return_value = val from openquery(DBLINK, 'select dba.ws_pack.truncate_table val from dual');