How does Upsert work in Apex?
Using the upsert operation, you can either insert or update an existing record in one call. To determine whether a record already exists, the upsert statement or Database method uses the record’s ID as the key to match records, a custom external ID field, or a standard field with the idLookup attribute set to true.
How do I record Upsert in Apex?
Upsert Record in Apex
- The upsert statement matches the sObjects with existing records by comparing values of one field.
- You can specify a field to use for matching.
- If you don’t specify a field name, the upsert statement uses the sObject’s ID to match the sObject with existing records in Salesforce.
How does Upsert work in Salesforce?
The Salesforce Upsert step updates existing records and inserts new records into your Salesforce database using the Salesforce Web Service. Reads records directly from your Salesforce database. Inserts records directly into your Salesforce database. Updates records directly into your Salesforce database.
Is upsert more expensive than insert?
It depends. A simple UPDATE that uses a primary key in the WHERE clause and updates only a single non-indexed field would likely be less costly than an INSERT on the same table.
How does the upsert statement in apex work?
To determine whether a record already exists, the upsert statement or Database method uses the record’s ID as the key to match records, a custom external ID field, or a standard field with the idLookup attribute set to true. If the key is not matched, then a new object record is created.
When to use upsert vs update in Salesforce Stack Exchange?
If the key is matched multiple times, then an error is generated and the object record is neither inserted or updated. Update refreshes existing records only. Upsert refreshes existing records and inserts new records if it does not find a match. Thanks for contributing an answer to Salesforce Stack Exchange!
How is the upsert statement used in the database?
Using the upsert operation, you can either insert or update an existing record in one call. To determine whether a record already exists, the upsert statement or Database method uses the record’s ID as the key to match records, a custom external ID field, or a standard field with the idLookup attribute set to true.
Can You Upsert a city in Salesforce apex?
Upserting Records Using the upsert operation, you can either insert or update an existing record in one call. The following example updates the city name for all existing accounts located in the city formerly known as Bombay, and also inserts a new account located in San Francisco: