MySQL Convert Bytes to Kilobytes, Megabytes, Gigabytes

Question

I have a logs table that stores various file sizes in bytes. I want to be able to query the database and return the smallest possible float which has been converted to MB GB

Answer 1

I know this is an old question, but I was looking for the same thing recently, and found out that MySQL 5.7 added format_bytes function exactly for this purpose:

mysql> SELECT format_bytes(512), format_bytes(18446644073709551615);
+-------------------+------------------------------------+
| format_bytes(512) | format_bytes(18446644073709551615) |
+-------------------+------------------------------------+
| 512 bytes         | 16383.91 PiB                       |
+-------------------+------------------------------------+