The mechanism to load an image to one column or 10 columns is the same, you insert a row into the database and provide the bytes for the image as the value to insert. The difference is that you have either 1 picture column or 10 columns in the insert statement.
I would advice you to use a single column and instead of adding one row with 10 images you should add 10 rows with one image. Also I'd suggest using a filestream for the task. Have a look at
How to store and fetch binary data into a file stream column[
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