Question

I’m writing some JDBC code which calls a Oracle 11g PL/SQL procdedure which has a Custom Object return type. Whenever I try an register my return types, I get either ORA-03115 or PLS-00306 as an error when the statement is executed depending on the type I set. An example is below:

PLSQL Code:

Procedure GetDataSummary (p_my_key    IN    KEYS.MY_KEY%TYPE,
                          p_recordset OUT   data_summary_tab,
                          p_status    OUT   VARCHAR2);

More PLSQL Code (Custom Object Details):

CREATE OR REPLACE TYPE data_summary_obj
AS
   OBJECT (data_key             NUMBER,
           data_category        VARCHAR2 (100),
           sensitive_flag       VARCHAR2 (1),
           date_created         DATE,
           date_rep_received    DATE,
           date_first_offering  DATE,
           agency_data_ref      VARCHAR2 (13),
           change_code          VARCHAR2 (120),
           data_ref             VARCHAR2 (50),
           data_status          VARCHAR2 (100),
           data_count           NUMBER)
/

CREATE OR REPLACE TYPE data_summary_tab AS TABLE OF data_summary_obj
/ 

Java Code:

String query = "begin manageroleviewdata.getdatasummary(?, ?, ?); end;");
CallableStatement stmt = conn.prepareCall(query);

stmt.setInt(1, 83);

stmt.registerOutParameter(2, OracleTypes.CURSOR); // Causes error: PLS-00306
stmt.registerOutParameter(3, OracleTypes.VARCHAR);

stmt.execute(stmt); // Error mentioned above thrown here.

Can anyone provide me with an example showing how I can do this? I guess it’s possible. However I can’t see a rowset OracleType. CURSOR, REF, DATALINK, and more fail.

Apologies if this is a dumb question. I’m not a PL/SQL expert and may have used the wrong terminology in some areas of my question. (If so, please edit me).

Thanks in advance.

Regs, Andrew

Answer 1

I finally (with a little help from others) found out the answer to this. It came in three parts:

The first was that I needed to use an:

OracleCallableStatement stmt = (OracleCallableStatement) conn.prepareCall(query);

rather than the simple JDBC CallableStatement I had been trying to use.

The second part was that I had to register my “out” parameter as follows:

stmt.registerOutParameter(2, OracleTypes.STRUCT, "DATA_SUMMARY_TAB");

The third part, and it is implicit in part 2 above, was that “DATA_SUMMARY_TAB” had to be in UPPER CASE. If you put it in lower case, then you get a cryptic error message as follows:

java.sql.SQLException: invalid name pattern: MYTEST.data_summary_tab

at oracle.jdbc.oracore.OracleTypeADT.initMetadata(OracleTypeADT.java:553)
at oracle.jdbc.oracore.OracleTypeADT.init(OracleTypeADT.java:469)
at oracle.sql.StructDescriptor.initPickler(StructDescriptor.java:390)
at oracle.sql.StructDescriptor.(StructDescriptor.java:320)

That’s it.

Also, please note our custom object type was not in any packages. If it is, you might need to hack the third parameter around a little.