Updating data using linq to sql

Posted by / 21-Nov-2017 06:14

Then, Open Access uses it for the actual statement execution, in order to filter the records with an inner join.As a result, the bulk operations are both incredibly faster and with a minimal memory consumption in comparison with the one-by-one execution still offered by many frameworks as the only choice.call in order to be applied - they are executed instantaneously!So be careful with the delete statements - powerful weapons should be handled with caution.

According to MSDN, “Entity Framework (EF) is an object-relational mapper that enables .Here is a simple example of how you can achieve this particular deletion using the Open Access Context in a single line of code: What happens behind the scenes?In order to use both the LINQ statement for the query and the update / delete definition, a temporary table is created first in the database with all the IDs that are selected.This is quite useful for most scenarios, as the typical data intensive application performs CRUD operations mostly based on user interaction, which means that the volume of the changes is usually not very large.For instance: On the other hand, consider a scenario where a maintenance task, a deployment script or just some complex business logic requires changes to be applied not on one, two or three entities, but on ten thousand.

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Not only that you are able to generate such bulk updates and deletes, but they are made available to you through a convenient, LINQ-like API.

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