Re: Can you copy a long raw field in PLSQL?

From: Jacob Steen Due <jcd_at_ramboll.dk>
Date: 1996/07/19
Message-ID: <4so556$l59_at_news.dknet.dk>#1/1

Les Phillips <lesp_at_deakin.edu.au> wrote:

>I would like to copy a record containing a long raw field.
>The field holds a word document inserted via OLE functionality
>within Forms 4.5.
 

>I would like to perform this within a stored procedure.
>You can create a variable of long raw in PLSQL but the data
>will be truncated if over a certain length.
 

>Is there a solution as to how I may achieve this?

The following is taken from a similar thread - all credit goes to the original author:

---

There has been a lot of discussion recently in this group on the topic of processing LONG data. The basic synopsis is that its pretty easy to process LONG data within PL/SQL as long as none of the data is longer than 32 Kb. This is because a varchar2 variable in PL/SQL may have a length of up to 32,767 bytes.

The same holds true for LONG RAW data: PL/SQL lets you declare a raw variable of up to 32,767 bytes in length. Here is a very basic example:

SQL> create table test
2 (
3 col1 long raw
4 );

Table created.

SQL> declare
2 cursor c is select col1 from test; 3 x raw(32767);
4 begin
5 open c;
6 loop

7      fetch c into x;
8      exit when c%notfound;
9      /* Do your processing here... */

10 end loop;
11 close c;
12 end;
13 /

PL/SQL procedure successfully completed.

SQL> There are certain limitations when you deal with LONG and LONG RAW data types. For example, you cannot use cursor/for loops in PL/SQL when a LONG or LONG RAW is being fetched by the cursor. But you still get a good range of functionality.

I performed the above simple test case on an Oracle 7.3.2 database (PL/SQL 2.3). However, I would expect it to work with any Oracle7 database version.

Regards,
Roger Schrag
schrag_at_ix.netcom.com

---

hope this helps.

Jacob

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Jacob Steen Due                               RAMBOLL Informatics and Management

email: jcd_at_ramboll.dk

All standard disclaimers apply and all that. Witty disclaimer under construction. Received on Fri Jul 19 1996 - 00:00:00 CEST