External Table
Luca's blog on data engineering, data platforms, and performance.
Links
(Move to ...)
Luca's Home Page
Luca's Twitter
Luca's GitHub
Blog of the database services at CERN
▼
Monday, September 22, 2014
SystemTap into Oracle for Fun and Profit
›
Topic: This post is about using SystemTap for investigating and troubleshooting Oracle RDBMS. In particular you will learn how to probe Ora...
4 comments:
Tuesday, August 5, 2014
Scaling up Cardinality Estimates in 12.1.0.2
›
Topic: Counting the number of distinct values ( NDV ) for a table column has important applications in the database domain, ranging from qu...
3 comments:
Thursday, June 26, 2014
ASM Metadata, Internals and Diagnostic Utilities
›
If you use ASM on a regular basis, you may find that knowledge of the internals can be very useful for advanced troubleshooting and in gene...
Friday, May 30, 2014
Oracle Optimizer Investigated with Flame Graphs
›
Topic: This post is about investigating the Oracle Optimizer using stack sampling and flame graphs. We will see how the complexity of the O...
Friday, May 9, 2014
Flame Graphs for Oracle
›
Topic: This post is a hands-on introduction to using on-CPU Flame Graphs for investigating Oracle workloads. This technique is about co...
Friday, April 25, 2014
A Closer Look at CALIBRATE_IO
›
Topic: This blog entry is about investigating Oracle's DBMS_RESOURCE_MANAGER.CALIBRATE_IO Spoiler alert: For quantitative analysis of...
2 comments:
‹
›
Home
View web version
