試験ADA-C02 トピック1 問題21 スレッド

A. A deadlock cannot occur in Snowflake, since concurrently executed queries and DML statements do not block one another.

B. If two queries are concurrently executed against the same table, one of the two queries will be blocked until the other query completes.

C. Transaction locking in Snowflake is enforced exclusively at the row and table levels.

D. Queries executed within a given transaction see that transaction's uncommitted changes.