Log Buffer #429: a carnival of the vanities for DBAs

Posted in: Microsoft SQL Server, MySQL, Oracle, Technical Track

This Log Buffer Edition gathers a wide sample of blogs and then purifies the best ones from Oracle, SQL Server and MySQL.


  • If you take a look at the “alter user” command in the old 9i documentation, you’ll see this: DEFAULT ROLE Clause.
  • There’s been an interesting recent discussion on the OTN Database forum regarding “Index blank blocks after a large update that was rolled back.”
  • 12c Parallel Execution New Features: 1 SLAVE distribution
  • Index Tree Dumps in Oracle 12c Database (New Age)
  • Is it possible to cause tables to be stale with only tiny amounts of change?

SQL Server:

  • Making Data Analytics Simpler: SQL Server and R
  • Challenges with integrating MySQL data in an ETL regime and the amazing FMTONLY trick!
  • Azure Stream Analytics aims to extract knowledge structures from continuous ordered streams of data by real-time analysis.
  • Grant User Access to All SQL Server Databases
  • SQL SERVER – How Do We Find Deadlocks?


  • Efficient Use of Indexes in MySQL
  • Business-critical MySQL with DR in vCloud Air
  • Become a MySQL DBA blog series – Common operations – Schema Changes.
  • Building a Better CREATE USER Command

Learn more about Pythian’s expertise in Oracle , SQL ServerMySQL, as well as the author Fahd Mirza.



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About the Author

I have been in love with Oracle blogging since 2007. This blogging, coupled with extensive participation in Oracle forums, plus Oracle related speaking engagements, various Oracle certifications, teaching, and working in the trenches with Oracle technologies has enabled me to receive the Oracle ACE award. I was the first ever Pakistani to get that award. From Oracle Open World SF to Foresight 20:20 Perth. I have been expressing my love for Exadata. For the last few years, I am loving the data at Pythian, and proudly writing their log buffer carnivals.

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