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How does Entity Framework handle transactions?
Entity Framework internally maintains transactions when the SaveChanges() method is called. It means the Entity Framework maintains a transaction for the multiple entity insert, update and delete in a single SaveChanges() method. When we execute another operation, the Entity Framework creates a new transaction.
How do I use EF core transaction?
This feature was introduced in EF Core 5.0. When SaveChanges is invoked and a transaction is already in progress on the context, EF automatically creates a savepoint before saving any data. Savepoints are points within a database transaction which may later be rolled back to, if an error occurs or for any other reason.
What is transaction Entity Framework?
A transaction is a series of operations performed as a single unit of work. Entity Framework transactions are a part of its internal architecture. The SaveChanges method operates within a transaction and saves results of the work. It is designed to ensure data integrity.
How are transactions created in Entity Framework 6?
Here you will learn about the transactions in EF 6.x & EF Core. In Entity Framework, the SaveChanges () method internally creates a transaction and wraps all INSERT, UPDATE and DELETE operations under it. Multiple SaveChanges () calls, create separate transactions, perform CRUD operations and then commit each transaction.
What does usetransaction do in Entity Framework?
DbContext.Database.UseTransaction (): Allows us to pass an existing transaction object created out of the scope of a context object. This will allow EF to execute commands within an external transaction object. Alternatively, pass in null to clear the framework’s knowledge of that transaction.
Why do we need Entity Framework in dbcontext?
It is a simple and easier method within an existing DbContext to start and complete transactions for users. It allows several operations to be combined within the same transaction and hence either all are committed or all are rolled back as one. It also allows the user to more easily specify the isolation level for the transaction.
When to use savechanges in Entity Framework?
In all versions of Entity Framework, whenever you execute SaveChanges () to insert, update or delete the database, the framework will wrap that operation in a transaction. When you invoke SaveChanges, the context automatically starts a transaction and commits or rolls it back depending on whether the persistence succeeded.
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