Using Tables of Records in PL/SQL

Question

I've declared the following types in my PL/SQL package:

TYPE t_simple_object IS RECORD (
   wert   NUMBER,
   gs     NUMBER,
   vl     NUMBER);

TYPE t_obj_table IS TABLE OF t_simple_object
  INDEX BY BINARY_INTEGER;

Then I declare a variable:

obj t_obj_table;

However, when I want to use the variable, I cannot initialize or extend it:

obj := t_obj_table ();

gives the following errror:

PLS-00222: no function with name 'T_OBJ_TABLE' exists in this scope

If I don't initialize it, I can't extend it to add some date as

obj.EXTEND();

gives another error:

PLS-00306: wrong number or types of arguments in call to 'EXTEND'

How can I make this work?

Answer 1

You don't extend a table indexed by "something", you can just use it...

DECLARE
   TYPE t_simple_object IS RECORD 
      ( wert   NUMBER
      , gs     NUMBER
      , vl     NUMBER
      ); 

   TYPE t_obj_table IS TABLE OF t_simple_object
   INDEX BY BINARY_INTEGER; 

   my_rec t_simple_object;
   obj t_obj_table; 
BEGIN
   my_rec.wert := 1;
   my_rec.gs := 1;
   my_rec.vl := 1;
   obj(1) := my_rec;
END;
/

To use the EXTEND syntax, this example should do it...

DECLARE
   TYPE t_simple_object IS RECORD 
      ( wert   NUMBER
      , gs     NUMBER
      , vl     NUMBER
      ); 

   TYPE t_obj_table IS TABLE OF t_simple_object; 

   my_rec t_simple_object;
   obj t_obj_table := t_obj_table(); 
BEGIN
   obj.EXTEND;
   my_rec.wert := 1;
   my_rec.gs := 1;
   my_rec.vl := 1;
   obj(1) := my_rec;
END;
/

Also see this link (Ask Tom)