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Yes, 978 and now 979 are EAN/UPC prefixes for ISBN-13, Country Code = Bookland. The ISBN-10 is obsolete and first digit is language. Most ISBN 10 have ISBN-13 equivalents.
Also the elephant in the room is that identical content novels can have different ISBN-10 or ISBN-13 if there is more than one printed format. An ebook need not have an ISBN at all as it's for retail ordering of a paper title in print, not for Library cataloguing or ebook "ordering". Physical libraries may store an ISBN simply as part of a book record. Each copy has a different library index code even if the same edition. If there are 10 copies bought at different times (or large print, hardback, Trade size and pocket book will ALWAYS have different ISBNs) they may not all have the same ISBN.
If you have a Kindle there is some value to an ASIN column, but there is no value at all to an ISBN column for ebooks. I'd only only have an ISBN column if I was operating a physical (lending) library, purely to differentiate editions. A library for printed books would have a row for each copy even if the exact same book.
In the past I programmed and sold library software for physical books and videos.
I might use an ISBN barcode once with a scanner to add a new book record to a library database of physical books. In the past a unique per copy barcode would have been added, now RFIDs are used which can be concealed in hardbacks and also be part of an anti-theft system.
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