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by: mPath Records |
last post by:
Hello,
I hope someone can help me with this problem - I'm getting nowhere
fast and have been working on it for a week.
All I'm trying to do is upload an image, store the image in a bytea
column of a postrgresql database, pull the image out of the datbase,
and verify that the image is still the same and it can be viewed by a
browser - that's all. The upload part works fine... I'm having
problems getting out what I put in. The file...
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by: Morten Goodwin Olsen |
last post by:
Python, PostgreSQL and bytea
Hi
I am having a bit of trouble inserting images into a postgres database
using python. The images should be stored in a bytea field.
I have tried both with an odbc connection and psycopg.
The python code is as following:
conn = PgSQL.connect(connectionString) # or psycopg og odb
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by: Edwin Quijada |
last post by:
Hi !! Everybody
I am developing app using Delphi and I have a question:
I have to save pictures into my database. Each picture has 20 o 30k aprox.
What is the way more optimus?
That 's table will have 500000 records around. Somebody said the best way to
do that was encoder the picture to field bytea but I dont know about this.
Another way is save the path to the picture file but I dont like so much
because I need to write to disk by OS...
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by: Baldur Norddahl |
last post by:
Hi,
I need to do something like this:
select * from sms where message ilike 'foo%';
Message is a bytea field with UTF-8 content. The charset is actually not
important for me, it would be enough if it could just treat it as us ascii. The
statement does not work because postgresql can not convert bytea to text. But
this works:
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by: Alvar Freude |
last post by:
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Hi,
I want to change a column from text to bytea; since it seems that alter
table can't change the column type, i have to add a temporary column and
copy the data from the old one to the new, delete the old and rename the
new.
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by: Louis LeBlanc |
last post by:
Hey folks. I'm new to the list, and not quite what you'd call a DB
Guru, so please be patient with me. I'm afraid the lead up here is a
bit verbose . . .
I am working on an application that uses very high volume DB
transactions - in the order of tens of millions per day . . .
Anyway, the current database which will remain nameless, but begins
with O and rymes with debacle (sorta), has a problem with high volume
work when it comes to...
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by: David Garamond |
last post by:
May I request that connectby() supports BYTEA keys too? My keys are GUID
(16-byte stored in BYTEA). In this case, branch_delim does not make
sense because the keys should be fixed-length anyway, unless if
connectby() also wants to support outputing the branch as encoded text.
Btw, is recursive join (CONNECT BY ...) in SQL standard? (I have a copy
of the 1992 draft and it doesn't seem to be there).
--
dave
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by: C G |
last post by:
Dear All,
What's the best way to store jpgs in postgresql to use in a web page?
I tried to use large objects, but how would you extract them from a table to
be viewed in a web-page without having to write them to a scratch file
somewhere first?
Thanks
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by: rich |
last post by:
How do you insert a jpg into bytea field and how do you extract it to
display it?
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by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
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by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
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by: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
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by: agi2029 |
last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own....
Now, this would greatly impact the work of software developers. The idea...
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by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
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by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
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by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
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by: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
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by: bsmnconsultancy |
last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...
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