Table locks - PowerPoint PPT Presentation

Understanding Lock Contention

Understanding Lock Contention. Objectives. After completing this lesson, you should be able to: Explain the primary causes of lock contention Describe the roles of the SMON process and their possible impact on performance: Coalescing free space Cleaning up temporary segments.

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Data Manipulation

Data Manipulation. Chapter Objectives. Add a record to an existing table Add a record containing a NULL value to an existing table Use a subquery to copy records from an existing table Modify the existing rows within a table. Chapter Objectives.

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