Retrieving PL/SQL Table Type returned by stored procedure using Java.

Question

Hi All,
I am facing an issue in a Stored Procedure (SP) which returns Table Type, the PL/SQL complex type.
Below mentioned is how my stored procedure looks like.
CREATE OR REPLACE package sp_test_pkg as
TYPE v_value_table_type is table of SW_VALID_CODE.swValue%Type
index by binary_integer;
v_swRMAStatus v_value_table_type;
procedure sp_test
(locale      in int,
          name      in SW_CODE.swName%Type,
          v_value_table out v_value_table_type,
batch_size in int,
out_batch_size in out int,
status out int);
end sp_test_lcode_code_pkg;
My java program to access this stored procedure is as given below:
import java.sql.*;
import oracle.jdbc.driver.*;
public class OracleTest {       
     public static void main(String args[]) {
     Connection con = null;
OracleCallableStatement cstmt = null;
String url = "url";
     String userName = "username";     
     String password = "password";
try
          DriverManager.registerDriver (new oracle.jdbc.driver.OracleDriver());     
          con = DriverManager.getConnection(url, userName, password);
     cstmt = (OracleCallableStatement)con.prepareCall("begin " +
          "sp_test_pkg.sp_test_pkg(?,?,?,?,?,?); end;");
          cstmt.setInt(1, 1);
     cstmt.setString(2, "Test");
          cstmt.registerOutParameter(3, OracleTypes.ARRAY);
          cstmt.setInt(4, 10);
          cstmt.setInt(5, 1);
          cstmt.registerOutParameter(5, Types.INTEGER);
          cstmt.registerOutParameter(6, Types.INTEGER);
          cstmt.execute();
} catch(Exception ex) {
ex.printStackTrace(System.err);
} finally {
if(cstmt != null) try{cstmt.close();}catch(Exception _ex){}
if(con != null) try{con.close();}catch(Exception _ex){}
When i execute this java program, i get the following error:
java.sql.SQLException: Parameter Type Conflict: sqlType=2003
     at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:187)
     at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:229)
     at oracle.jdbc.driver.OracleCallableStatement.registerOutParameterBytes(OracleCallableStatement.java:245)
     at oracle.jdbc.driver.OracleCallableStatement.registerOutParameter(OracleCallableStatement.java:389)
     at oracle.jdbc.driver.OracleCallableStatement.registerOutParameter(OracleCallableStatement.java:452)
     at OracleTest.main(OracleTest.java:49)
I am not sure where i am going wrong. I have never worked on such complex types before. I want to retrieve the complex table type returned by the stored procedure using my java source code.
Can anyone please help me out in resolving this issue?. This is very urgent.

Answer 1

JDBC does not recognise types declared in PL/SQL. This is documented in the Dev Guide. [Find out more|http://download-west.oracle.com/docs/cd/B10501_01/java.920/a96654/oraarr.htm#1057625].
The only work around would be to build a wrapper which calls your existing PL/SQL procedures and returns a SQL type instead. Obviously not knowing your precise scenario I have no idea how much work this entails for you. It may be worth building a code generator.
Cheers, APC
blog: http://radiofreetooting.blogspot.com