Does SQLite load entire database into memory?

Does SQLite load database into memory?

An SQLite database is normally stored in a single ordinary disk file. However, in certain circumstances, the database might be stored in memory. The most common way to force an SQLite database to exist purely in memory is to open the database using the special filename ":memory:".

Can SQLite store an entire database in a single file?

Afaik, SQLite stores a single database in a single file.

Does SQLite cache in memory?

SQLite provides an in-memory cache which you size according to the maximum number of database pages that you want to hold in memory at any given time. Berkeley DB also provides an in-memory cache that performs the same function as SQLite.

How much memory does SQLite use?

SQLite will refuse to allocate more than about 2GB of memory at one go. (In common use, SQLite seldom ever allocates more than about 8KB of memory at a time so a 2GB allocation limit is not a burden.) So the 64-bit size parameter provides lots of headroom for detecting overflows.