Transactional Access of Azure Blob Storage

Question

I would like to store files in Azure Blob Storage. So far so good. I also would like to store addtional meta-data about the file; for that I use a Azure SQL Database (so I c

Answer 1

There is nothing built-in that will do this as far as I know; you will need to manage this yourself. The simplest scenario is to save your blob first, then add your database record. Since the database serves as an index for your needs, the Blob is essentially invisible to your code until the database records gets saved.

A more involved option is to implement your own commit logic. You would handle a database insert (with a flag on the record set to 0 for example), save the Blob, and if successful set the flag in the database to 1.

You could also save the metadata in Azure Tables, although searching in Azure Tables can slow down significantly if you have lots of records. Searching in SQL Database will be faster most of the time.

Which approach you choose depends on your objectives, but I think the first option is the simplest.