04_Entity States - Maniconserve/EF-Core GitHub Wiki

Entity States in EF Core

Added

• The entity is new and not yet saved in the database.
• EF Core will generate an INSERT query when SaveChanges() is called.

Modified

• The entity exists in the database, but some properties have changed.
• EF Core will generate an UPDATE query for modified properties.

Unchanged

• The entity exists in the database and has no changes.
• EF Core does not generate any SQL commands for it.

Deleted

• The entity exists in the database but is marked for deletion.
• EF Core will generate a DELETE query when SaveChanges() is called.

Detached

• The entity is not being tracked by EF Core.
• It will not be included in database operations unless explicitly attached.

To see the practical implementation visit the link