Additionally, it is not possible to delete all the columns from a table (possible with PostgreSQL or MySQL).This cannot be achieved by modifying the column, but requires recreating the table (including all constraints, indices, and foreign keys) and moving all data between the tables. Destructive changesĬertain migrations will cause more changes than you might expect. See Special rules for referential actions in SQL Server for more information. When using a Microsoft SQL Server database, Prisma will show a validation error if the referential action on a relation is set to something other than NoAction. Cyclic referencesĬircular references can occur between models when each model references another, creating a closed loop. However, if the production database uses another schema name, all the migration SQL must be either edited by hand to reflect the production or the connection URL must be changed before creating migrations (for example: schema=name). For most of the users this is dbo (the default value). This means that when you create migrations, you must define the same schema name in the connection URL that is used by the production database. SQL Server does not have an equivalent to the PostgreSQL SET search_path command familiar from PostgreSQL. Prisma Migrate is supported in 2.13.0 and later with the following caveats: Database schema names Limitations and known issues Prisma Migrate caveats Type mapping between Microsoft SQL Server to Prisma schemaįor type mappings organized by Prisma type, refer to the Prisma schema reference documentation. Since version 2.28.0.Ĭonfigures whether to trust the server certificate. Sets the application name for the connection. If all connections are in use, the database will return a PoolTimeout error after waiting for the given time.ĪpplicationName Application Name (case insensitive) Maximum number of seconds to wait for a new connection from the pool. Number of seconds to wait for each query to succeed. Number of seconds to wait for login to succeed. LoginTimeout connectTimeout connectionTimeout Maximum number of seconds to wait for a new connectionĪdded as a prefix to all the queries if schema name is not the default. If login details are not given via separate arguments, the current logged in Windows user is used to login to the server. If set to true or yes and username and password are present, login is performed through Windows Active Directory. Password for SQL Server login or Windows (Active Directory) username if integratedSecurity is set to true (Windows only).Ĭonfigures whether to use TLS all the time, or only for the login procedure, possible values: true (use always), false (only for login credentials).Įnables Windows authentication (integrated security), possible values: true, false, yes, no. SQL Server login (such as sa) or a valid Windows (Active Directory) username if integratedSecurity is set to true (Windows only).

Sql server foreign key constraint