How to avoid update conflict when updating the same record at the same time

Can't update database using EF Migrations after updating to EF 6.0.0-alpha

OK. I've figured out the answer. Evidently, EF anticipates the Primary Key constraint of...__MigrationHistory... the name of the table...PK_dbo.__MigrationHistory... though it is...PK___MigrationHistory... ....Therefore, the sql statements below will work....ALTER TABLE __MigrationHistory drop CONSTRAINT PK___MigrationHistory ALTER TABLE __Migratio...

Updating records with Entity Framework Core 1.0 without needing to Update/UpdateRange

ZZZ_tmp

EF Core - adding/updating entity and adding/updating/removing child entities in one request

ZZZ_tmp

Entity Framework DB updating but DB context not showing updates

I appreciate Eric J and DevilSuichiro's assistance in getting my problem solved. I should not have been attempting to utilise the same DB context, and that was the issue. I was able to validate my test findings by acquiring a fresh DB context as opposed to attempting to reuse the old one....Again, many thanks.

Update a data without modifying CreatedBy and CreatedDate while updating the existing record

ZZZ_tmp

EF Can't update one-to-zero or one relationship fields, but updates the rest

ZZZ_tmp

Add or Update child entities when updating a parent entity in Entity Framework Core

ZZZ_tmp

Entity Framework Core: Update() method INSERTs instead of UPDATEs on dependent entity

ZZZ_tmp

DateTime property causing new migration update even without any update on model in Entity Framework core

ZZZ_tmp

EF Core Update updates all columns even though only one has changed

It was my understanding that EF Core has a "Change Tracker"...You are not need to indicate things as modified once they have been tied to the context, which is true. Following the line......book.Title += " x"; ...EF notices this modification and marks marks....Title... as altered. Do not dial the...Update... method....This situation is referred to...