Re: RPG Stored Procedure returning a BLOB

We actually got this to do what we wanted by changing the BLOB to a
CLOB. The CLOB parameter was accessable by the JSP code. 

>>> liisberg@xxxxxxxxxxxxx 4/19/2006 7:26:06 PM >>>
Hi Mike;

The problem is that MyBlob mow becomes a based variable because all
PARM 
variables are actually based - So now SQL can't find the allocated
storage 
for MyBlob.

You can however help this out by parsing a pointer in the *ENTRY
MyBlobPtr 
and the base a your "MyBlob" with a size on that ...

Regards

Niels;


----- Original Message ----- 
From: "Mike Cunningham" <MCUNNING@xxxxxxx>
To: "Web Enabling the AS400 / iSeries" <web400@xxxxxxxxxxxx>
Sent: Thursday, April 06, 2006 3:19 PM
Subject: [WEB400] RPG Stored Procedure returning a BLOB


>I want to return a BLOB field from an RPG program that is being used
as
> a stored procedure. I can create the BLOB field and get the data in
it
> that I want but when I add the BLOB field to the *ENTRY parameter
list
> to pass it back I get a compiler error that the BLOB field can be
> initialized.
>
> I defined a large string and a BLOB like this
>
> MyString        S          20000
> MyBlob           S                  SQLTYPE(BLOB:20000)
>
> I put the  data I want to return in MyString and then use this SQL
> command to put in the BLOB field
>
> C/EXEC SQL
> C+ SET :MYBLOB = BLOB(:MYSTRING)
> C/END-EXEC
>
> Doing this compiles OK and I can run the app and see the data in
both
> MyString and MyBlob in debug.
>
> When I add this line of code I get the compiler error
> C     *ENTRY        PLIST
> C                        PARM                    MyBlob
>
> *RNF7306 20      1 The initial value for a pointer field is not
valid.
> The initial value for pointer field SQL_00006 is not valid.
>
>               DS
> SQL_00000              1      2B 0 INZ(128)
> SQL_00001              3      4B 0 INZ(1)
> SQL_00002              5      8B 0 INZ(0)
> SQL_00003              9      9A   INZ('0')
> SQL_00004             10    128A
> SQL_00005            129  20128A
> SQL_00006                      *   INZ(%ADDR(MYBLOB))
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