Prathapachandran.v wrote: In-memory database means, all the database schema and data will reside in memory and we can use any supported SQL queries to manipulate data in the memory-db. But when the memory-db connection is closed, that data will be lost. I know what the term means. Prathapachandran.v wrote: we can use the below connection string to create an in-memory db in sqlite. Do you know the difference between 'how' and 'why'? Because I asked why it was needed.