Type the name of the database that will be used to store query logs and administrative settings associated with the search ...

Type the name of the database that will be used to store query logs and administrative settings associated with the search service. Use of the default database server and database name is recommended in most cases. Refer to the administrator's guide for advanced scenarios.Use of Windows authentication is highly recommended. To use Microsoft SQL Server authentication, type the credentials that will be used to connect to this database.