Lesson Learned #486: Snapshot Isolation Transaction Failed Due to a Concurrent DDL Statement
Today, we worked on a service request that our customer faced the following error message: Msg 3961, Level 16, State 1, Line 4 Snapshot isolation transaction failed in database 'DbName' because the object accessed by the statement has been modified by a DDL statement in another concurrent transaction since the start of this transaction. It is disallowed because the metadata is not versioned. A concurrent update to metadata can lead to inconsistency if mixed with snapshot isolation.
