How to improve application performance when retrieving image data(byte) from SQL data base in VB

Question

1.00/5 (1 vote)

See more:

i am working on "Image Processing" Project.in which user can Store a multiple images and retrieve From Data Base.But Problem is Takes To Much Time To retrieve Image Data(Byte) from Data Base and displays in Stack Panel Image.

What I have tried:

i am retrieve the Image according to User Name.

Posted 18-Sep-17 20:37pm

ketan Ram Patil

Updated 18-Sep-17 21:07pm

Add a Solution

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

OriginalGriff · Accepted Answer · 2017-09-18T21:00:00

We can't help you: we have no idea how you are retrieving the images, how many of them you are retrieving, what you are storing them as, how big they are, what else is going on at the same time. We don't even know what you consider "To Much Time" is in the real world, or if the SQL server and the app PC are the same computer, or connected via two tin cans and a bit of string!

But ... images are big, and can be very, very big: storing them in a DB can be a very bad idea as it uses a lot of memory and bandwidth to transfer them. And your use of a stackpanel implies that there is more than one image being retrieved. So start by looking at what you are doing, and how many processes you are using on the image data. Try to work out where the bottleneck is, and identify any areas which are good for time savings. Consider using the Stopwatch class to give you accurate baseline numbers to work from in establishing what is quick and what is slow.

Sorry, but we can't do any of that for you - we can't see your screen, access your HDD, or read your mind; let alone time your code while it is running!

CPallini · Accepted Answer · 2017-09-18T21:07:00

Solution 2

A common technique is storing just the file paths in the database and leave the actual files on the filesystem.
Moreover, depending on your processing algorithm requirements, you could transform the files (e.g. resize, or reduce the color depth) in order to make them more lightweight.

Posted 18-Sep-17 21:07pm

CPallini

Comments

ketan Ram Patil 19-Sep-17 4:18am

i want to store the each scan image in data base and retrieve all scan images. :)