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Extracting BLOB data from the database into actual file

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New Contributor
Posts: 3

Extracting BLOB data from the database into actual file

Hi All,

 

Is it possible to extract the BLOB (Binary large objects) data from database (DB2/ORACLE/POSTGRES) and convert it into the actual file either it is pdf/excel/word or jpg using SAS Code?

 

I have tried to write the code and I am able to extract the BLOB into actual file where the BLOB length is less than 32767 however for some records the length is greater than 3L so in those cases i have created multiple variables of max length that SAS supports and concatenated these variables while writting to the output file stream. Still the file generated as corrupt. 

 

If anyone of you had faced the similar kind of issue and got the solution already please provide your inputs it will be very helpful.

 

Thanks and Regards,

Darshan Saini

Grand Advisor
Posts: 9,584

Re: Extracting BLOB data from the database into actual file

Can you transform BLOB into Character type column and import SAS ?


New Contributor
Posts: 3

Re: Extracting BLOB data from the database into actual file

In that case also SAS can accept maximum 32767 length only for a variable. I have tried that approach earlier however when I am concatenating the variables and setting to file there it seems to have some problem and the actual file is not getting generated.

Esteemed Advisor
Posts: 5,198

Re: Extracting BLOB data from the database into actual file

Short answer: no.
What benefit is it use SAS for this?
I think that there is some support for BLOBs in Viya, but that's too far away for your requirement I assume...
Data never sleeps
New Contributor
Posts: 3

Re: Extracting BLOB data from the database into actual file

Thanks LinusH for the response.

Let me clarify for you here.

I am migrating SAS Oprisk Monitor 3.4 to latest SAS Enterprise GRC 6.1 so I was just trying to extract all the attachments from older version and migrate to newer version on content server.

Benefit is No need to use the custom java or javascript code if we can achieve the solution in SAS itself
Esteemed Advisor
Posts: 5,198

Re: Extracting BLOB data from the database into actual file

Ok. If the BLOBs are a part of a SAS solution you may want some guidelines from them how to do the migration.
Data never sleeps
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