Calling a PL/SQL from VB with IN argument of object type

Question

I need to call a PL/SQL function in Oracle 8.1.6 from VB. One of the IN arguments is an object type (TYPE). How would I instantiate the variable of Oracle object type on VB side so that it can be passed to the Oracle?
Thank you

Answer 1

You have some flaws in your code.
First - don't use same identifier for pl sql variables ( including parameters) and column names. In your case oracle will evaluate the where clause as where column_name=column_name which is probably not what you want. The next one - you should ensure that select into yields one row , not more, not less, otherwise you 'll run into exception.
To actually print the desired values, you have to use dbms_output aware client ( sqlplus is such one) and for sqlplus in particular you have to issue set serveroutput on
Here is a very basic example how can you get it to work:
SQL> SELECT * FROM V$VERSION;
BANNER
Oracle Database 10g Express Edition Release 10.2.0.1.0 - Product
PL/SQL Release 10.2.0.1.0 - Production
CORE    10.2.0.1.0      Production
TNS for Linux: Version 10.2.0.1.0 - Production
NLSRTL Version 10.2.0.1.0 - Production
SQL> CREATE OR REPLACE PROCEDURE FIND_EMPLOYEES
  2  (p_first_name IN VARCHAR2)
  3  IS
  4  LAST varchar2(10);
  5  BEGIN
  6          SELECT LAST_NAME INTO LAST FROM EMPLOYEES WHERE FIRST_NAME = p_first_name;
  7          dbms_output.put_line(LAST);
  8  EXCEPTION
  9    WHEN no_data_found THEN
10    dbms_output.put_line('There is no one employee with such first name!');
11    WHEN too_many_rows THEN
12    dbms_output.put_line('There are many employees with such first name, try with another one!');
13  END FIND_EMPLOYEES;
14  /
Procedure created.
SQL> SET SERVEROUTPUT ON
SQL> EXEC FIND_EMPLOYEES('Julia')
There are many employees with such first name, try with another one!
PL/SQL procedure successfully completed.
SQL> EXEC FIND_EMPLOYEES('Eugenia')
There is no one employee with such first name!
PL/SQL procedure successfully completed.
SQL> EXEC FIND_EMPLOYEES('Adam')
Fripp
PL/SQL procedure successfully completed.Best regards
Maxim