How to Save an Image in a SQL Server Database?

Most of the web applications have a lot of images used in it. These images are usually stored in a web server folder and they are accessed by giving the relative path to the file with respect to the root folder of the website. .Net being the platform for distributed application now, ASP.Net can be used to store images that are small to be stored in a database like SQL Server 2000 and later versions. For this purpose the SQL Server database provides a data type called "image" which is used to store images in the database.

To access these images stored in the database we will be using the ADO.Net classes. To find out how to insert and retrieve an image in to the SQL Server database, you can create a .aspx page which can have a HTMLInputFile control which is used to select the image file that is to be saved in the database. You can also create a textbox control in which you can add the image name or some comment or an image id for the image saved. Use a button control to upload the image to the database. Namespaces like System.Data.SqlClient, System.Drawing, System.Data, System.IO, and System.Drawing.Imaging are used in this task.

In the OnClick property of the button you can write the following code to upload an image to the database.

// create a byte[] for the image file that is uploaded
int imagelen = Upload.PostedFile.ContentLength;
byte[] picbyte = new byte[imagelen];
Upload.PostedFile.InputStream.Read (picbyte, 0, imagelen);
// Insert the image and image id into the database
SqlConnection conn = new SqlConnection (@"give the connection string
here...");
try
{
conn.Open ();
SqlCommand cmd = new SqlCommand ("insert into ImageTable "
+ "(ImageField, ImageID) values (@pic, @imageid)",
conn);cmd.Parameters.Add ("@pic", picbyte);
cmd.Parameters.Add ("@imageid", lblImageID.Text);
cmd.ExecuteNonQuery ();
}
finally
{
conn.Close ();
}

You can also write the above code in a function and call that function in the OnClick event of the upload button. The code given above performs the following steps in the process of inserting an image into the database.

1. Get the content length of the image that is to be uploaded
2. Create a byte[] to store the image
3. Read the input stream of the posted file
4. Create a connection object
5. Open the connection object
6. Create a command object
7. Add parameters to the command object
8. Execute the sql command using the ExecuteNonQuery method of the command object
9. Close the connection object

To retrieve the image from the SQL Database you can perform the following steps.

1. Create a MemoryStream object. The code can be something like, MemoryStream mstream = new MemoryStream ();

2. Create a Connection object

3. Open the connection to the database

4. Create a command object to execute the command to retrieve the image

5. Use the command object's ExecuteScalar method to retrieve the image

6. Cast the output of the ExecuteScalar method to that of byte[] byte[] image = (byte[]) command.ExecuteScalar ();

7. Write the stream mstream.Write (image, 0, image.Length);

8. Create a bitmap object to hold the stream Bitmap bitmap = new Bitmap (stream);

9. Set the content type to "image/gif" Response.ContentType = "image/gif";

10. Use the Save method of the bitmap object to output the image to the OutputStream. bitmap.Save (Response.OutputStream, ImageFormat.Gif);

11. Close the connection

12. Close the stream mstream.Close();

Using the above steps you can retrieve and display the image from the database to the web page.

You can use these algorithms and take advantage of the "image" data type available in the SQLServer 2000 database to store small images that correspond to a particular record in the table of the database. This method of storing avoids the tedious task of tracking the path of the web folder if the images are stored in a web folder.

Visit a guide to .net for a complete introduction to .NET framework. Learn about ASP.NET, VB.NET, C# and other related technologies.

family-safe home cleaners Lincolnshire ..
In The News:

Chrome faces its sixth zero-day attack in 2025 as Google patches critical V8 engine flaw CVE-2025-10585 discovered by Threat Analysis Group.
The Hypershell X Ultra exoskeleton features 12 terrain modes and carbon fiber construction to enhance hiking, cycling and outdoor adventures.
Personal data from public records and data brokers helps scammers create tailored scam stories, making their calls and emails more believable to potential victims.
Uber Eats partners with drone delivery startup Flytrex to test autonomous food delivery services in U.S. markets, marking the company's first investment in drone technology.
OpenAI announces 120-day plan to strengthen ChatGPT safeguards for teens, including parental controls and expert council on AI wellbeing.
Spam emails can help improve security — if reported correctly. Learn how to report spam across major email services and get key tips to protect your inbox and personal data.
Harvard researcher Avi Loeb says comet 3I/ATLAS weighs 33 billion tons and spans 3.1 miles, making it far larger than previous interstellar visitors.
The Glassboro Public School District in New Jersey has partnered with ZeroEyes and InformaCast to detect visible firearms and alert staff and law enforcement within seconds.
Hackers use fake Google search results to trick users into downloading lookalike apps laced with malware that have been pushed to the top.
Generative A.I. has lowered barriers for sophisticated cyberattacks as hackers exploit ChatGPT and other tools to forge documents and identities.
IOS 26's new features include bigger lock screen clocks, dirty lens alerts, and improved spam detection for iPhones.
Stay up to date on the latest AI technology advancements and learn about the challenges and opportunities AI presents now and for the future.
Sophisticated phishing scams now exploit Apple's iCloud Calendar invite system to bypass spam filters and trick users into calling fake support numbers.
Complete guide to medication tracking apps for iPhone and Android users, featuring built-in Health apps, MediSafe, MyTherapy, and smart pill dispensers.
Alef Aeronautics plans to begin production of its electric flying car Model A by late 2025, following FAA approval for limited testing at five airport locations.
Five common overpayment scams use fake checks and third-party payment requests to steal money from unsuspecting victims across various scenarios.
The Robeta Ananya luxury camper van features a full living room, ceiling bed, washer-dryer, and complete kitchen starting at $295,000 for the limited Founders' Edition.
Scammers exploit retirees' trust and assets through fake debt collection calls, but proper verification methods and reporting can stop these fraudulent schemes.
Social media scams are rising as fraudsters create fake accounts and buy verification badges to deceive users, but these simple safety steps can protect you.
The new groundbreaking Paris Solar-Battery Park in Wisconsin provides renewable energy day and night by capturing excess energy from its solar panels.
Travelers face increased risks from fake Wi-Fi networks at airports and on flights as attackers exploit growing reliance on in-flight internet for entertainment and services.
Older Android phones, tablets and car systems will lose access to new Waze features as the app drops support for Android versions below 10.
Research shows iPhone owners' overconfidence in Apple security makes them easier targets for cybercriminals compared to Android users who take more precautions.
Five key tech terms reshaping online shopping from mobile payments and instant delivery to social media commerce and inventory-free retail models.
AI browsers from Microsoft, OpenAI and Perplexity can fall for scams faster than humans, completing fraudulent purchases and clicking malicious links without verification.

Font Organizers Review, Part I

Do you know how many fonts are currently installed on... Read More

How to Buy a Plasma Television Set

Most people think that all you have to do to... Read More

If You are the Only User on Your Windows XP Computer, Do You Think One User Account Is Enough?

I am going to assume that you are running windows... Read More

A Beginners Guide to Avoiding Viruses

"Aaaaaahhhhhh! I've been invaded by a virus!" Getting a virus... Read More

Cisco Certification: A Survival Guide To The Cisco Cable Jungle

One of the most confusing parts of beginning your Cisco... Read More

Digital Cameras: How Many Pixels Do I Need?

With the bewildering number of digital cameras on the market,... Read More

What are the Main Components of Any Computer, and Which are the Most Critical to Its Performance?

Computers are everywhere, and vary in specification, brands, sizes, shaped,... Read More

Quick System Restore with ASR Backups

ASR (Automated System Recovery) is a feature available on the... Read More

Why Build Your Own Computer System

Have you ever thought about building your own computer system?... Read More

Basic Diagnosis Guidelines for Your PC

Simone is exasperated. She has to work on her university... Read More

Troubleshooting Computer Freeze (Lockup) Problems

How familiar does the following sound? Your computer was working... Read More

Is DVD Storage An Attractive Alternative For Your Computer Backup?

If you have a computer for home use or for... Read More

Cisco Certification: The Most Important Cisco Study Youll Ever Do

All of us are familiar with the pyramids of Egypt.... Read More

Use Your Computer For Your Entertainment Needs

By using your computer today you can find a lot... Read More

Why There Are Color Differences in Printing from Your PC

This article describes the basic properties of color, what the... Read More

The Importance Of Email Backup

Viruses, software failures, power failures, human errors, hard drive failures... Read More

The Newbies Guide to Personal Computer Maintenance

When you turn on your computer, does it act like... Read More

iPod - Learn How It Can Solve Everyday Problems

All over the world, people carry with them walkmans and... Read More

Flash Your nVidia Video Cards BIOS

You will need the following:1. 1.44MB FDD (floppy)2. NVFLASH utility... Read More

Registry Tools Demystified

Not sure what Windows registry is or how it works?... Read More

How to Set Up Simple File Sharing WinXP

The first step is: Start > My DocumentsSo you have... Read More

Image Formats: GIF, JPEG, BMP

When browsing the internet you are likely to come across... Read More

Palm PC critique

I met an entrepreneur who hole heartedly disagree with an... Read More

Be Your Own IT Department

If you use a computer, you need to know more... Read More

Consumer Electronic Information: The Basics of the DLP Projector

Projectors have come a long way in the past few... Read More

after renovation cleaning Bannockburn ..