Calling Hana Store Procedure thorugh Eclipse link

Question

Hi,
Anybody having idea of calling HANA store procedure through Eclipse Link JPA.
Procedure has Scalar IN Parameter and Table Type as OUT Param:
CREATE PROCEDURE tree_view (IN  topicid BIGINT,OUT qtree tt_tree)
    LANGUAGE SQLSCRIPT
    READS SQL DATA AS  
BEGIN
/// SQL Statements
END;
Currently i an calling the procedure as
entiyManager.getTransaction().begin();
            java.sql.Connection connection = entiyManager.unwrap(java.sql.Connection.class);
            connection.setAutoCommit(false);
            CallableStatement cst = connection.prepareCall("call _SYS_BIC.\"workspace.procedures/tree_view\"(?,?)");
            cst.setLong(1, identifier);
            cst.execute();
            ResultSet rs =  cst.getResultSet();
     entiyManager.getTransaction().commit();
But need more cleaned way like using StoreProcedureQuery or PLSQLStoredProcedureCall.

Answer 1

Slightly missed the point.
The question was about providing an INPUT variable.
An in fact it is not possible to call a procedure with an table type input variable from the SQL console.
You have to build a wrapper to call such a procedure:
create type myusers as table (user_name nvarchar(60));
create procedure count_users (IN user_tab myusers, OUT user_count bigint )
language sqlscript
as
begin
    select count(*) into user_count from :user_tab;
end;
call count_users (? , ?)
Could not execute 'call count_users (? , ?)' .
SAP DBTech JDBC: [7]: feature not supported:
Parameterized input table parameter is not allowed: line 1 col 19 (at pos 18)
A wrapper for this could look like this:
create procedure call_cu (out user_count bigint)
language sqlscript
as
begin
    v_users = select user_name from users;
    call count_users (:v_users, :user_count);
end;
call call_cu (?)
--> 28
Unlike SQL*Plus for PL/SQL, the SQL console of SAP HANA is not a SQL Script runtime shell.
- Lars