G-2510: Avoid using the LONG and LONG RAW data types.
Reason
long and long raw data types have been deprecated by the Oracle Database since version 8i - support might be discontinued in future Oracle Database releases.
There are many constraints to long datatypes in comparison to the lob types.
Example (bad)
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15 | create or replace package example_package is
   g_long long;
   g_raw long raw;
   procedure do_something;
end example_package;
/
create or replace package body example_package is
   procedure do_something is
   begin
      null;
   end do_something;
end example_package;
/
 | 
Example (good)
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15 | create or replace package example_package is
   procedure do_something;
end example_package;
/
create or replace package body example_package is
   g_long clob;
   g_raw  blob;
   procedure do_something is
   begin
      null;
   end do_something;
end example_package;
/
 |