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ASH

Database Performance Tuning

Active Session History (ASH)

The Oracle wait event model was originally introduced in Oracle7. Wait event information is gathered by the Oracle MMON background process, stored in intermediate x$ structures in a circular SGA buffer, and later transferred to Oracle10g dba_hist tables. Oracle 10g introduced the Active Session History (ASH) as part of the Diagnostics and Tuning Read more…

By Ahmad, 2 years2 years ago
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Riaz Ahmad Ansari is an Oracle Consultant, Speaker, Blogger, YouTuber & Mentor.

He is famous for Ahmad’s nickname in the IT industry.

He has many years of experience as a production Oracle DBA managing all operating system based Oracle Databases.

He started working with Oracle Database starting from Oracle 9i to 10g/11g/12c18c/19c.

He has hands-on experience in real-world Production environments.

He is skilled with Oracle technologies such as Core DBA work, Data Guard, RMAN, Backup & Recovery, RAC, Cloud Control, and Performance Tuning.

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    ahmad@oracleride.com
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