In particular, Room provides the following benefits: Compile-time verification of SQL queries.
#SAVE DB SQLITE FULL#
Read performance is absolutely great, to the point where nobody on my team has been worried about measuring it. The Room persistence library provides an abstraction layer over SQLite to allow fluent database access while harnessing the full power of SQLite.
SQLite works a lot better for this application! The only downside was that write performance was a lot slower by default, but in my case I could mitigate that by disabling fsync() calls (fine for my application you aren't necessarily in the same position) which brought write performance up for a single BLOB to about the same as direct I/O, i.e., literally hardware limited. This was replacing a directory full of lots and lots of binary files (tens of thousands of them, each potentially quite large, enough to be really painful with most operating systems). My application (a kind of simulator) needed multigigabyte BLOBs that were built piecemeal, so I ended up using many of them and concatenating them in application space on read out (not difficult just need to keep a sequence number with each BLOB). bookmarkborder Apps that handle non-trivial amounts of structured data can benefit greatly from persisting that data locally. Updating a BLOB - including appending to it - is expensive. Save data in a local database using Room Part of Android Jetpack. My experience is that BLOBs are just fine up to a gigabyte in size, provided you write to them only when you are creating them. Is it feasible to use SQLite as a store of such Images and Files saveRDS (data, 'myfilename.
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