Abstract
It’s not uncommon for Oracle DBAs to field calls about a user being locked or “blocked” in the database. Oracle’s locking behavior is extremely sophisticated and supports simultaneous use of the database by multiple users. However, on occasion, it’s possible for a user to block another user’s work, mostly because of flaws in application design. This chapter explains how Oracle handles locks and how to identify a session that’s blocking others.
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© 2013 Sam R. Alapati
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Alapati, S.R., Kuhn, D., Padfield, B. (2013). Minimizing System Contention. In: Oracle Database 12c Performance Tuning Recipes. Apress, Berkeley, CA. https://doi.org/10.1007/978-1-4302-6188-9_5
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DOI: https://doi.org/10.1007/978-1-4302-6188-9_5
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Publisher Name: Apress, Berkeley, CA
Print ISBN: 978-1-4302-6187-2
Online ISBN: 978-1-4302-6188-9
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