Re: Storing small image files

On Thu, May 9, 2013 at 10:51 AM, Achilleas Mantzios <
achill(at)matrix(dot)gatewaynet(dot)com> wrote:

> **
>
> Take a look here first :
>
> http://www.postgresql.org/docs/9.2/interactive/datatype-binary.html
>
>
>
> then here :
> http://www.dbforums.com/postgresql/1666200-insert-jpeg-files-into-bytea-column.html
>
>
>
> didnt try it myself tho.
>
>
>
> Most of the time people manipulate bytea's using a higher level
> programming lang.
>

Thanks Achilleas. I usually do the physical design in vi using sql scripts,
and I like to include a couple of inserts and selects to make sure
everything is going according to plan. It looks like I may just have to
work with a front-end developer for this particular instance. Of all the
stupid things, in all of my years doing this I've never once had to work
with storing binary files, other than years ago when I was studying for
some of the MySQL certs.

If I do happen to come up with a solution that works I will be sure to post
it here.

>
>
>
>
> On Πεμ 09 Μαΐ 2013 10:34:35 Nelson Green wrote:
>
> On Thu, May 9, 2013 at 10:20 AM, Achilleas Mantzios <
> achill(at)matrix(dot)gatewaynet(dot)com> wrote:
>
> why not bytea?
>
>
> Hi Achilleas,
>
> Actually I was asking if bytea is the correct datatype, and if so, would
> someone mind providing a simple example of how to insert and retrieve the
> image through the psql client.
>
> Let's say I have an employee named Paul Kendell, who's employee ID is
> 880918. Their badge number will be PK00880918, and their badge photo is
> named /tmp/PK00880918.jpg. What would the INSERT statement look like to put
> that information into the security_badge table, and what would the SELECT
> statement look like to retrieve that record?
>
> Thanks for your time.
>
>
>
> much more control, much more information, IMHO.
>
> In our DB evolving from an initial 7.1 back in 2001, and currently on 9.0,
>
> we have been storing everything binary in bytea's.
>
>
>
> There are downsides in both solutions, you just have to have good reasons
>
> to not use bytea.
>
>
>
> On Πεμ 09 Μαΐ 2013 10:04:18 Nelson Green wrote:
>
> Good morning list,
>
> I am designing a system that will have a table for security badges, and we
> want to store the ID badge photo. These are small files, averaging about
> 500K in size. We have made the decision to store the image as a BLOB in the
> table itself for a variety of reasons. However, I am having trouble
> understanding just how to do that.
>
> The table structures:
>
> CREATE TABLE employee
> (
> employee_id INTEGER NOT NULL,
> employee_lastname VARCHAR(35) NOT NULL,
> employee_firstname VARCHAR(35) NOT NULL,
> employee_mi CHAR(1),
> PRIMARY KEY (employee_id)
> );
>
> CREATE TABLE security_badge
> (
> badge_number CHAR(10) NOT NULL,
> employee_id INTEGER NOT NULL
> REFERENCES employee(employee_id),
> badge_photo ????,
> PRIMARY KEY (badge_number)
> );
>
> What datatype should I use for the badge_photo (bytea?), and what are the
> commands to insert the picture accessing the server remotely through psql,
> and to retrieve the photos as well, please?
>
> Thanks,
> Nelson
>
>
>
> -
>
> Achilleas Mantzios
>
> IT DEV
>
> IT DEPT
>
> Dynacom Tankers Mgmt
>
>
>
>
> -
>
> Achilleas Mantzios
>
> IT DEV
>
> IT DEPT
>
> Dynacom Tankers Mgmt
>