Contents
How to query multiple objects in batch apex?
I am using custom setting (EmptyRecycleBinBatch) to hold object API names.. Any suggestion is appreciated! You could use custom iterable for this case. Thanks for your response. Even if it works, in this case I will have to code all the object names that I wanted to avoid.
How to work with batch apex, inner queries and iterators?
We will be looking at a couple of bottleneck that we will be coming across when we try to work with inner queries, batch Apex and iterators, post which will walk you through the workarounds. First, when we try to put inner query within the start method, the batch will start to show unexpected behaviour.
What’s the difference between batch apex and executebatch?
This method is called after all batches are processed. Each execution of a batch Apex job is considered a discrete transaction. For example, a batch Apex job that contains 1,000 records and is executed without the optional scope parameter from Database.executeBatch is considered five transactions of 200 records each.
How many records can be executed in batch apex?
For example, a batch Apex job that contains 1,000 records and is executed without the optional scope parameter from Database.executeBatch is considered five transactions of 200 records each. The Apex governor limits are reset for each transaction.
How to iterate over a query locator in apex?
To iterate over a query locator, save the iterator instance that this method returns in a variable and then use this variable to iterate over the collection. Calling iterator every time you want to perform an iteration can result in incorrect behaviour because each call returns a new iterator instance.
Can you write complex code in batch apex?
We are not supposed to write all the complex code that we write in Apex classes within batch apex. We will be looking at a couple of bottleneck that we will be coming across when we try to work with inner queries, batch Apex and iterators, post which will walk you through the workarounds.