Hi Waghmare,
From the captured image you need to get the byte data and and save in database in binary format.
Capture Image (Photo) from Web Camera (Webcam) in ASP.Net using C# and VB.Net
In the above article below line is saving bytes as file.
File.WriteAllBytes(Server.MapPath(imagePath), ConvertHexToBytes(hexString));
Instead you can get the bytes using the below code.
byte[] bytes = ConvertHexToBytes(hexString);
Then save in database. Refer below article for saving byte data in database.
Read and Write BLOB Data to SQL Server database using C# and VB.Net