Question

I’d like to save some images (jpeg) into a blob file. I don’t have any idea to start, how is a blob file generated ? I searched google and this site but i couldn’t find any example. I guess I don’t understand about blobs and database. Your guidance is best appreciated.

Answer 1

You could try something like this:

MySqlCommand cmd;
cmd.CommandText = "INSERT INTO mytable (id, blobcol) VALUES (1,:blobfile)";
cmd.Parameters.Add("blobfile", File.ReadAllBytes(your_jpeg_file));

A BLOB is a binary field in which you can write (in general) an array of bytes.
So you can read your file as byte[] and pass it to a query parameter.