Top 20 NuGet upsert Packages
Adds basic support for "Upsert" operations to EF Core. Uses `INSERT … ON CONFLICT DO UPDATE` in PostgreSQL/Sqlite, `MERGE` in SqlServer and `INSERT INTO … ON DUPLICATE KEY UPDATE` in MySQL. Also supports injecting sql command generators to add support for other providers
Bulk Data API/Tools for SQL Server databases. Easily perform bulk "upsert" operations on your database. Nifty helper utility for moving around large sets of data.
.Net Upsert for combined insert and update operations of strongly typed collections into SQL Server.