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Results tagged with Search options user 708

For questions about issues arising when multiple users or processes concurrently access or modify shared information in a database system.

10
votes
be using queues. The concurrency of SET InProgress = 1 WHERE Completed = 0 is basically 1, because it will always require a scan. An equivalent solution using queues for events to signal requests to transition state will scale basically X CPUs. …
answered Feb 4 '13 by Remus Rusanu
1
vote
concurrency issue? Yes. More than just one row. If N concurrent users will reach the count at the same point and count limit -1, then all N will proceed and insert thus you will exceed by N-1 …
answered May 10 '17 by Remus Rusanu
7
votes
Transaction Processing: Concepts and Techniques. Readings in Database Systems Principles of Transaction Processing While product specific books do a great job at explaining how to use the products …
answered Feb 13 '12 by Remus Rusanu