Display Any Execution Plan With Ease
April 11, 2018Ever wondered how to display the execution plan of a SQL Statement quickly? Are you dreading the question “What is… Continue Reading
Tag: DBA
What Should You Do With SQL Plan Directive Changes in 12.1?
March 14, 2018Last week we looked at SQL Plan Directives, what they are, when do they get created, how they are used… Continue Reading
What Are SQL Plan Directives?
March 7, 2018If you ever looked at an execution plan in Oracle 12c, most likely you noticed the following line, at the… Continue Reading
What Is The Relationship Between SCNs and DB Links?
January 24, 2018Have you ever checked the value of the SCN number – System Change Number in your databases? Were you surprised… Continue Reading
So You Think You Can Gather Stats?
December 6, 2017I have covered lots of topics on Oracle Optimizer Statistics. I’d like to summarize everything you learned, or reviewed in… Continue Reading
3 Things You Must Know About Oracle Optimizer Statistics
October 25, 2017You keep hearing that statistics are important for the Oracle database. You keep hearing that you should collect statistics. A… Continue Reading
How To Make login.sql Work Again In 12.2 and 11.2.0.4
August 30, 2017What happens when things change and all of a sudden don’t work the same as they used to? Do you… Continue Reading
Strong vs Weak Selectivity – Everything A DBA Needs To Know
August 23, 2017Previous post I introduced you to Selectivity and Cardinality, and asked a question at the end. Thanks to all the… Continue Reading
All You Need To Know About The Local Oracle Inventory
July 26, 2017Most DBAs have heard of the Central Oracle Inventory, even if they don’t know details about it. But, have you… Continue Reading
How To Maintain The Fast Recovery Area
July 12, 2017You understand what the Fast Recovery Area aka FRA is, what files are stored there and how to enable it.… Continue Reading