Entity Framework Extensions: Key Options for Customizing Bulk Operations in EF Core

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Entity Framework Extensions is a .NET library that enables high-speed bulk database operations, addressing performance limitations in standard EF Core for large datasets. The library can be added via a NuGet package and extends DbContext with methods like BulkInsertAsync, capable of handling tens of thousands of records in seconds. Developers can configure bulk inserts using options such as InsertIfNotExists, which prevents duplicate records from being written to the database. The library also supports custom primary key matching through ColumnPrimaryKeyExpression, allowing entities to be identified by any property or combination of properties rather than the default primary key. These customization options make the library particularly useful for data-intensive applications such as IoT telemetry systems that require frequent, large-scale database writes.

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