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Which is best practice for bulk triggers in apex?
The SOQL and DML bulk best practices apply to any Apex code, including SOQL and DML in classes. The examples given are based on triggers and use the Trigger.New context variable. Let’s first look at the most basic bulk design concept in triggers. Bulkified triggers operate on all sObjects in the trigger context.
Which is the best way to bulkify Apex code?
The following sections demonstrate the main ways of bulkifying your Apex code in triggers: operating on all records in the trigger, and performing SOQL and DML on collections of sObjects instead of single sObjects at a time. The SOQL and DML bulk best practices apply to any Apex code, including SOQL and DML in classes.
When to go for trigger in DML in apex?
Always go for bulkification.Instead of calling an DML operation on a single record,always opt for List of records. Most important thing is first check whether the same requirement can be achieved using a workflow rule,process builder,flows.If not then go for code i.e Trigger.
How often can a DML statement be called in bulk apex?
In this example, the update statement is inefficiently called once for each opportunity. If a bulk account update operation fired the trigger, there can be many accounts. If each account has one or two opportunities, we can easily end up with over 150 opportunities. The DML statement limit is 150 calls.
When to use a trigger and bulk request?
If more than 100 queries are issued, the trigger would exceed the SOQL query limit. For more information on governor limits, see Execution Governors and Limits. This pattern respects the bulk nature of the trigger by passing the Trigger.new collection to a set, then using the set in a single SOQL query.
What’s the best way to use a trigger?
This pattern respects the bulk nature of the trigger by passing the Trigger.new collection to a set, then using the set in a single SOQL query. This pattern captures all incoming records within the request while limiting the number of SOQL queries.
When do bulkified triggers operate on all sobjects?
Bulkified triggers operate on all sObjects in the trigger context. Typically, triggers operate on one record if the action that fired the trigger originates from the user interface.