在 Java 中调用 Oracle 存储过程

Question

Here's how I'm able to execute my stored procedure through SqlDeveloper

var p refcursor;
exec DMG.Getstudentids(12342343,:p);
print p;

Output

P
-----------
STUDENT_ID
-----------
23432425
54353455

Now I'm trying execute the stored procedure the same way but in Java. Here's my code and I'm missing something about the input/output parameters or their datatypes.

Connection connection = DriverManager.getConnection(url, user, pass);
CallableStatement cs = connection.prepareCall("{call DMG.Getstudentids(?,?)}");
cs.setFloat(1, 12342343);
cs.registerOutParameter(2, Types.OTHER);
cs.execute();
List<Integer> result = (List<Integer>) cs.getArray(2);

I get the following error

java.sql.SQLException: Invalid column type: 1111

I think I'm missing something fundamental here. Anyone see where I'm failing? Thanks.

Answer 1

Try following:

Connection connection = DriverManager.getConnection(url, user, pass);
CallableStatement cs = connection.prepareCall("{call DMG.Getstudentids(?,?)}");
cs.setFloat(1, 12342343);
cs.registerOutParameter(2, OracleTypes.CURSOR);
cs.executeQuery();
ResultSet resultSet=cs.getObject(1);
List<Integer> result = new ArrayList<Integer>();
while(resultSet.next()){
 result.add(resultSet.getInt(STUDENT_ID));
}

Note : Since the procedure is returning refcursor , you need to register OracleTypes.CURSOR as output parameter.

Nother thing to note is you need to catch the whole dataset (refcursor) into Result Set , iterate it and put the extracted value into List .