Java procedure call

Question

Dear All,
Need your help.
I am posting my sample class below
public static java.sql.ResultSet getData(String dbConnectStr,String dbuserID,String dbpwd,String query) throws Exception
// Obtain default connection
// Query all columns from the EMP table
ResultSet rset = null;
Connection conn = null;
try
DriverManager.registerDriver(new oracle.jdbc.OracleDriver());
conn = (OracleConnection)DriverManager.getConnection("jdbc:oracle:thin:@"+dbConnectStr,dbuserID,dbpwd);
((OracleConnection)conn).setCreateStatementAsRefCursor(true);
stat.execute("alter session set NLS_DATE_FORMAT='DD-Mon-RRRR HH:MI:SS'");*/
System.out.println(query);
Statement stmt = conn.createStatement();
rset = stmt.executeQuery(query);
System.out.println("returning");
catch (SQLException e)
e.printStackTrace();
// Return the ResultSet (as a REF CURSOR)
return rset;
################################## My Function in Oracle DB
FUNCTION DB_CALL(dbConnectStr VARCHAR2,dbuserID VARCHAR2,dbpwd VARCHAR2,query VARCHAR2) return axsbcstatement.CUR is language java name 'com.axs.logc.OracleDeployProcedure.getData(java.lang.String,java.lang.String,java.lang.String,java.lang.String) return java.sql.Resultset' ;
########################### My Procedure Where i am calling this function
PROCEDURE INSERT_call (inward_dbConnectStr VARCHAR2,inward_dbuserID VARCHAR2,inward_dbpwd VARCHAR2,query VARCHAR2,updateCnt out number) as
up_cnt number(6) :=0;
db_cur axsbcstatement.inward_cur;
ENTRY_NMBR_field dummy_table.Entry_Nmbr%type;
SNDR_NAME_field dummy_table.Sndr_Name%type;
SNDR_ADDRSS_field dummy_table.Sndr_Addrss%type;
RCVR_NAME_field dummy_table.Rcvr_Name%type;
REMARKS_field dummy_table.Remarks%type;
TRAN_AMNT_field dummy_table.Tran_Amnt%type;
TRAN_DATE_field dummy_table.Tran_Date%type;
BATCH_TRANID_field dummy_table.Batch_Tranid%type;
BATCH_TIME_field dummy_table.Batch_Time%type;
BEGIN
db_cur := INWARD_DB_CALL(inward_dbConnectStr,inward_dbuserID ,inward_dbpwd ,query);
loop
fetch db_cur into ENTRY_NMBR_field,TRAN_ID_field,SNDR_NAME_field,SNDR_ADDRSS_field,RCVR_NAME_field,REMARKS_field,TRAN_DATE_field,BNFCRY_field,BATCH_TRANID_field,BATCH_TIME_field;
EXIT WHEN db_cur%NOTFOUND;
begin
select ENTRY_NMBR INTO ENTRY_NMBR_field from dummy_table where ENTRY_NMBR = entry_nmbr_field and TRAN_ID = TRAN_ID_field;
if SQL%found then
dbms_output.put_line('Data Found in table ');
end if;
Exception
when no_data_found then
insert into dummy_table values(ENTRY_NMBR_field,TRAN_ID_field,SNDR_NAME_field,SNDR_ADDRSS_field,RCVR_NAME_field,REMARKS_field,TRAN_DATE_field,BNFCRY_field,BATCH_TRANID_field,BATCH_TIME_field);
up_cnt := up_cnt+1;
end;
end loop;
close db_cur;
updateCnt := up_cnt;
Exception
when others then
dbms_output.put_line(' - ' || SQLCODE|| ' ' ||SQLERRM);
END INSERT_call;
I am getting "ORA-00932: inconsistent datatypes: expected a return value that is a java.sql.ResultSet got a java.sql.ResultSet that can not be used as a REF CURSOR" this error while executing the procedure...
i have tried so many things but not able to solve this problem..
Apart from this If someone suggest me ...........
I am having two different database.with same table structure .
i have to take data from db1 and insert into the db2 on incremental basis (some checks required while inserting into the db2)
Regards .
Salil

Answer 1

You are using column type declarations which is good. But, for ORA-00932 it's good to triple check that the all your data types match up. For instance in your:
insert into dummy_table values(ENTRY_NMBR_field,TRAN_ID_field,SNDR_NAME_field,SNDR_ADDRSS_field,RCVR_NAME_field,REMARKS_field,TRAN_DATE_field,BNFCRY_field,BATCH_TRANID_field,BATCH_TIME_field);You are implicately ordering by the actual column order of the table. Which is often the cause for this error.
Outside of that, are you using Java because you can not use a database link?