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JDBC not accepting null Oracle object parameters to PL/SQL procedures

Posted on 2007-03-19
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Last Modified: 2013-12-29
I am calling an Oracle Stored Procedure (Oracle 9i), passing in Oracle defined objects.
It is possible that these objects are null. I am using JPublisher to generate the java objects directly based upon the Oracle Object definitions.
Problem is that I am getting the following exception
java.sql.SQLException: Invalid column type

Here is an example of one such parameter
if (convFeeConsPayee == null ){
  stmt.setNull(7, java.sql.Types.STRUCT);
}
else {
  stmt.setObject(7, convFeeConsPayee);
}
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Question by:pbarry30
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8 Comments
 
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by:
CEHJ earned 125 total points
ID: 18752187
>>stmt.setNull(7, java.sql.Types.STRUCT);

Is Struct the correct column type?
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Author Comment

by:pbarry30
ID: 18752251
Kind of :)
The Java object representing the Oracle object definition implements wraps a MutableStruct but it is not strictly one itself.
These objects are also out parameters and the following works as expected
stmt.registerOutParameter(1, java.sql.Types.STRUCT, SITE_TYPE._SQL_NAME);
where SITE_TYPE._SQL_NAME just resolves to the real Oracle oject name
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Assisted Solution

by:Mayank S
Mayank S earned 125 total points
ID: 18756877
>> stmt.setNull(7, java.sql.Types.STRUCT);

What if you try: stmt.setNull ( 7,  java.sql.Types.NULL ) ;
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Author Comment

by:pbarry30
ID: 18761043
same result unfortunately
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Expert Comment

by:Mayank S
ID: 18761534
What about setObject ( 7, ....NULL ) ;
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LVL 86

Expert Comment

by:CEHJ
ID: 18762478
Try

stmt.setNull ( 7,  java.sql.Types.OTHER ) ;
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Author Comment

by:pbarry30
ID: 18804416
The solution is to specifiy it as a STRUCT and to specify the sqlType as well
e.g.
stmt.setNull(7, java.sql.Types.STRUCT, CONSUMER_PAYEE_TYPE._SQL_NAME);

Thanks
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Expert Comment

by:CEHJ
ID: 18814465
:-)
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