The command updated the LocalDB instance's security settings to allow the NT AUTHORITY\SYSTEM user to connect without a password.
Based on SQL Server 2022’s innovations, SQL Server 2025 LocalDB would likely include: sql server 2025 localdb
conn.Open(); SqlCommand cmd = new SqlCommand("SELECT @@VERSION", conn); string version = (string)cmd.ExecuteScalar(); Console.WriteLine(version); // Microsoft SQL Server 2025 (vNext) The command updated the LocalDB instance's security settings