Calling an Oracle PL/SQL procedure in Java using a CallableStatement with a boolean IN parameter gives an PLS-00306 oracle error:

Question

I have a pl/sql procedure on an Oracle 11g that has the following parameters:

PROCEDURE validate_product
   ( product_id_in IN varchar2 , 
     username_in in va         


        

Answer 1

I was amazed when we ran into this, but the Oracle JDBC Driver doesn't support passing booleans into Stored Procedures.... Ya, I'm not making that up :)

Boolean Parameters in PL/SQL Stored Procedures

The JDBC drivers do not support the passing of BOOLEAN parameters to PL/SQL stored procedures. If a PL/SQL procedure contains BOOLEAN values, you can work around the restriction by wrapping the PL/SQL procedure with a second PL/SQL procedure that accepts the argument as an INT and passes it to the first stored procedure. When the second procedure is called, the server performs the conversion from INT to BOOLEAN.