<PackageReference Include="System.Data.SqlClient" Version="4.9.0" />

SqlNotificationInfo

public enum SqlNotificationInfo
namespace System.Data.SqlClient { [Obsolete("Use the Microsoft.Data.SqlClient package instead.")] public enum SqlNotificationInfo { AlreadyChanged = -2, Unknown, Truncate, Insert, Update, Delete, Drop, Alter, Restart, Error, Query, Invalid, Options, Isolation, Expired, Resource, PreviousFire, TemplateLimit, Merge } }