WebJan 30, 2024 · There are libraries out there that allows for real bulk insert of entities using under the hood mechanism of SqlBulkCopy Link to EF Core library: … WebMar 10, 2024 · The entity framework will set any generated identity columns when inserting new rows and as you can see in the sp_executesql code snippet above, it uses scope_identity() to do this. This works nicely as long as you insert one row at a time just like EF does but now that we want to use bulk insert instead, we need a slightly more …
c# - EF Codefirst Bulk Insert - Stack Overflow
WebAug 14, 2024 · SQL has a built-in mechanism to import a large volume of data, called Bulk Insert. Luckily for us, dotnet supports a Bulk Insert with the SqlBulkCopy class. Besides … WebAug 8, 2013 · There are valid scenarios for this, such as when doing a bulk import from CSV where the email address needs to be unique in an existing database. Reading all existing keys into memory doesn't seem good for performance, neither is adding each entry separately. It seems that what is needed is something like INSERT IGNORE. – acarlon pear swimwear
c# - How to use Bulk Insert in Entity Framework using Object …
WebDec 3, 2024 · Entity Framework can generate the necessary database commands for doing the database CRUD Operation i.e. can generate SELECT, INSERT, UPDATE and … WebMay 4, 2024 · Bulk operations are not a good match for Entity Framework - and adding another level of complexity with a repository pattern makes it even worse. If you really want to bulk-import - then use low-level ADO.NET code directly (see the documentation on the SqlBulkCopy class). WebApr 1, 2024 · 3. According to this, bulk insert in Entity can be made using the following code: var customers = GetCustomers (); db.Customers.AddRange (customers); … lights that wrap around tree trunks