This feature has been added in the Database Toolbox 3.2 (R2006b). You can use the RUNSTOREDPROCEDURE function. If you are using a previous version, read below for any workarounds.
You can retrieve the output value(s) as follows:
% Get one output.
x = runstoredprocedure(c,'myproc',{2500,'Jones'},{java.sql.Types.NUMERIC})
% Get two outputs.
x = runstoredprocedure(c,'myproc',{2500,'Jones'},{java.sql.Types.NUMERIC java.sql.Types.INTEGER})
% One integer output value.
%returnValue = runstoredprocedure(conn, 'test', {0}, {java.sql.Types.INTEGER})
% Two integer output values.
returnValues = runstoredprocedure(conn, 'test2', {0}, {java.sql.Types.INTEGER java.sql.Types.INTEGER})
To return data from a stored procedure, you will need to issue some commands from the MATLAB other than EXEC and FETCH commands.
The syntax for a stored procedure is:
{?= call <procedure-name>[<arg1>,<arg2>, ...]}
or
{call <procedure-name>[<arg1>,<arg2>, ...]}
The first case deals with a procedure that returns an OUT parameter and the second case shows no OUT parameter.
MATLAB (ODBC) example:
conn = database('source','username','password');
cs = conn.Handle.prepareCall('{?= call <procedure-name>[<arg1>,<arg2>, ...]}');
Assume this stored procedure returns a double
cs.registerOutParameter(2, java.sql.Types.DOUBLE, 3);
cs.executeQuery;
x = cs.getDouble(1);
The above code then returns a double value stored at index value 1 of the output parameters.
For more information about the above code, refer to the JDBC API documentation.
