Error PLS-00306 during calling PL/SQL function from Java

Question

Hi all,
I am facing a problem during call of oracle PL/SQL function from java using CallableStatement.
I receive following error message.
java.sql.SQLException: ORA-06550: line 1, column 13:
PLS-00306: wrong number or types of arguments in call to 'EXPORT_HIST_ALARMS_FUNC'
ORA-06550: line 1, column 7:
PL/SQL: Statement ignored
As per above error EXPORT_HIST_ALARMS_FUNC in oracle has this signature.
CREATE OR REPLACE FUNCTION EXPORT_HIST_ALARMS_FUNC(startDateTime VARCHAR2, endDateTime VARCHAR2, meType VARCHAR2) RETURN VARCHAR2 IS
END EXPORT_HIST_ALARMS_FUNC;
Above function I have called following way in java.
String sql = "begin ?:= EXPORT_HIST_ALARMS_FUNC(?, ?, ?); end;" ;
CallableStatement cStatement = null;
cStatement = connection.prepareCall(sql);
cStatement.registerOutParameter(1,Types.VARCHAR);
cStatement.setString(2,startDateTime);
cStatement.setString(3,endDateTime);
cStatement.setString(4,meType);
cStatement.execute();
msg = cStatement.getString(1);
Actually above function requires three input parameters and one return parameter.
During execution of above java code it throws SQLException and shows PLS-00306: wrong number or types of arguments in call to 'EXPORT_HIST_ALARMS_FUNC' error.
I have run this function directly from oracle with three parameters and run successfully and finally it returns string.
But I am unable to figure out why it doesn't run from above java code.
Please help regarding this.
Thanks.
Regards,
Shardul Banker

Answer 1

Try this:
String sql = "begin ?:= EXPORT_HIST_ALARMS_FUNC(?, ?, ?); end;" ;
CallableStatement cStatement = null;
cStatement = connection.prepareCall(sql);
cStatement.registerOutParameter(1,Types.VARCHAR);
cStatement.setString(1,startDateTime);
cStatement.setString(2,endDateTime);
cStatement.setString(3,meType);
cStatement.execute();
msg = cStatement.getString(1);Regards,
Martijn Teigeler
Edited by: mTeigeler on Oct 13, 2007 10:22 AM