Non-lock concurrency control

In Computer Science, in the field of databases, non-lock concurrency control is concurrency control method used in relational databases without using locking.

There are several non-lock concurrency control methods:

• Optimistic concurrency control
• Timestamp-based concurrency control
• Multiversion concurrency control

They involve the use of timestamps on transaction to determine transaction priority.

See also

• Concurrency pattern
• Optimistic concurrency control (should Optimistic concurrency control and Non-lock concurrency control be merged ?)
• InterBase
• Lock-free and wait-free algorithms