Questions tagged [database-isolation-level]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
0
votes
0answers
29 views

Understanding non repeatable read anomaly in databases

This paper discusses in detail ANSI isolation levels discussed in ANSI SQL standard on page 84. Paper introduces following shorthand for describing histories which contain reads, writes, commits and ...
0
votes
0answers
104 views

Understanding repeatable read isolation level

Wikipedia defines following terms: With a lock-based concurrency control DBMS implementation, serializability isolation level requires read and write locks (acquired on selected data) to be ...