AW: SQL view *pointer to a BLOB

With Interactive SQL (STRSQL) you cannot see any value of any large object. STRSQL is stabilized and was not enhanced after Release V4R5M0 (or something like that).
Large objects where introduced with release V5R1M0 and Large Objects are not stored within the record, but in a so called overflow area while within the record only a pointer on the overflow area is stored.
That's why you only see *POINTER with STRSQL.

With the Run SQL Scripting Tool of the IBM i Navigator, you can see the content of a large object, i.e. the address of the overflow area is resolved and the data of the large object displayed like a column value.
Because BLOB is a Binary Large Object, you only can see those hex values. You may try if you can convert/Cast the BLOB into a CLOB (character large object) to see some text.
But if the BLOB contains any data in any "strange" format, you'll have no luck.

Mit freundlichen Grüßen / Best regards

Birgitta Hauser

"Shoot for the moon, even if you miss, you'll land among the stars." (Les Brown)
"If you think education is expensive, try ignorance." (Derek Bok)
"What is worse than training your staff and losing them? Not training them and keeping them!"

-----Ursprüngliche Nachricht-----
Von: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] Im Auftrag von Jack Tucky
Gesendet: Wednesday, 19.11 2014 20:41
An: Midrange Systems Technical Discussion
Betreff: Re: AW: SQL view *pointer to a BLOB

Hi sorry if I missed a reply, but I can't get Interactive SQL to show me the file name either. Is there a function I need to use?

Thanks, Jack

On Tue, Nov 18, 2014 at 9:22 AM, Jack Tucky <jacktucky@xxxxxxxxx> wrote:

I did that and saw hex data. Do I need char()?

On Nov 18, 2014, at 2:05 AM, Birgitta Hauser
<Hauser@xxxxxxxxxxxxxxx>

wrote:

Use IBM i Navigator's Run an SQL Script instead of STRSQL.

Mit freundlichen Grüßen / Best regards

Birgitta Hauser

"Shoot for the moon, even if you miss, you'll land among the stars."
(Les
Brown)
"If you think education is expensive, try ignorance." (Derek Bok)
"What is worse than training your staff and losing them? Not
training

them

and keeping them!"


-----Ursprüngliche Nachricht-----
Von: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] Im Auftrag
von

Jack

Tucky
Gesendet: Tuesday, 18.11 2014 02:06
An: 'Midrange Systems Technical Discussion'
Betreff: SQL view *pointer to a BLOB

I recall viewing the location for a BLOB in interactive SQL using
CAST or CHAR or some function.



Lost my notes and google not helping.



I thought it was select char(blob) from blobtable but that tells me

argument

1 not valid.



Thanks, Jack







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