| sidebar_position |
|---|
1 |
Bitwarden primarily stores data in MSSQL (Microsoft SQL Server). The data access layer in the Server is written using Dapper which is a lightweight object mapper for .NET.
See Server Setup Guide.
You should run the migrate.ps1 helper script whenever you sync with the main branch or create a
new migration script. migrate.ps1 tracks run migrations in migrations_$DATABASENAME, which is
typically migrations_vault_dev.
The process for modifying the database is described in Migrations.
Migration records are stored by vault database name, which is typically either vault_dev or
vault_dev_self_host. If you’ve deleted these in order to start fresh, you should delete the
corresponding migrations_$DATABASENAME database.