Articles

Bulk Update

Bulk Update...Definition...UPDATE... all entities in the database....All rows that match the entity key are considered as existing and are ...UPDATED... in the database....// Easy to use context.BulkUpdate(list); // Easy to customize context.BulkUpdate(customers, options => options.ColumnPrimaryKeyExpression = customer => customer.Code); ...Try it...Purpose...Updating... entities using a custom key from file importation is a typical scenario....Despite the ...ChangeTracker... being outstanding ...

Update Records

Update Records...How to Bulk Update?...Updating entities using a custom key from file importation is a typical scenario. Despite the ChangeTracker being outstanding to track what's modified, it lacks in term of scalability and flexibility....SaveChanges requires one database round-trip for every entity to update. So if you need to update 10000 entities, then 10000 database round-trips will be performed which is ...INSANELY... slow....StackOverflow Related Questions...Batch update/delete EF5...En...

Update without loading

Update Without Loading...How to update without loading entities in the context?...Updating entities using SaveChanges requires typically to load them first in the ChangeTracker. These additional round-trips are often not necessary....StackOverflow Related Questions...Update a record without first querying?...Update record without fetching first Entity Framework...Answer...Entity Framework Extensions... library adds the UpdateFromQuery extension method. ...UpdateFromQuery... gives you access to d...