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What is transaction control in Apex?
Apex gives you the ability to generate a savepoint , that is, a point in the request that specifies the state of the database at that time. Each savepoint you set counts against the governor limit for DML statements. Static variables are not reverted during a rollback.
What is context variable in Apex?
All triggers define implicit variables that allow developers to access run-time context. These variables are contained in the System.Trigger class.
What is execution context Salesforce?
An execution context is the context information available during the lifetime of a transaction. Transactions are requests initiated by users when they update a record in the UI, use the API to upload records, etc. From Apex Transactions. An Apex transaction is sometimes referred to as an execution context.
When the code executes which two events occur as a result of the Apex transaction?
When the code executes, which two events occur as a result of the Apex transaction? BThe Apex transaction succeeds regardless of any uncaught exception and all processed accounts are updated.
What is an apex transaction and why does it matter?
An Apex transaction represents a set of operations that are executed as a single unit. All DML operations in a transaction either complete successfully, or if an error occurs in one operation, the entire transaction is rolled back and no data is committed to the database.
What happens when an apex transaction is not committed?
If an error occurs in any of the intermediate steps, all database changes are rolled back and the transaction isn’t committed. An Apex transaction is sometimes referred to as an execution context. Both terms refer to the same thing.
What is an apex transaction in Salesforce Stack Exchange?
An Apex transaction represents a set of operations that are executed as a single unit. All DML operations in a transaction either complete successfully, or if an error occurs in one operation, the entire transaction is rolled back and no data is committed to the database.
When to use flow control statement in apex?
Flow control statement is beneficial when you want to execute some lines of the code based on some conditions. The above snippet of code is querying account records from the database and checking the list size. DML stands for data manipulation language. DML statements are used to manipulate data in the Salesforce database.
How does transaction control work in Salesforce web service?
Transaction Control All requests are delimited by the trigger, class method, Web Service, Visualforce page or anonymous block that executes the Apex code. If the entire request completes successfully, all changes are committed to the database.