Data Skew in Salesforce
Data skew in Salesforce refers to a condition where the distribution of related records is uneven or imbalanced across parent records. This can occur within standard or custom objects when many records are associated with a single account, user, or parent record. Two primary types of skew can happen in Salesforce: Ownership Data Skew: This happens when a single user owns many records. For example, suppose one user owns tens of thousands of account or opportunity records. In that case, it can cause performance issues because the system optimizes sharing calculations based on a more balanced record ownership model. Parent-Child Data Skew: This is a situation where a large number of child records are linked to a single parent record. A typical example is having thousands of contact records associated with a single account. When a child record is created, updated, or deleted, Salesforce must lock the parent record to maintain data integrity. This can lead to contention and performa...