CPU Issues and Speculative Execution

Posted: January 21, 2018 | Author: justdaveinfo | Filed under: CPU Issues, Security, Solaris | Tags: CPU Issues, F5, Fortinet, Nexenta, Oracle, Pure Storage, Qubes, Rockwell Automation, Scality, Security, Synology, Wonderware | Leave a comment

added

Debian,Fedora
LLVM,ZFS,Lustre
Oracle Sparc,RISC-V
Oracle,Nexenta,Scality,Pure Storage,Wonderware,Rockwell Automation,Synology,F5,Qubes,Qubes,Fortinet,Netap

Updated Google cloud section to mention Retpoline a compile time fix for Variant 2 (part of Spectre) with “almost no performance loss.”

Oracle APPROX_COUNT_DISTINCT Function

Posted: June 8, 2016 | Author: justdaveinfo | Filed under: Oracle, Oracle 12c, Uncategorized | Tags: Oracle, Oracle 12c | Leave a comment

Some notes on the Oracle APPROX_COUNT_DISTINCT Function

The APPROX_COUNT_DISTINCT Function – A Test Case

Testing

Scaling up Cardinality Estimates in 12.1.0.2

HyperLogLog in Oracle

HyperLogLog — Cornerstone of a Big Data Infrastructure

Posted: April 30, 2015 | Author: justdaveinfo | Filed under: Oracle, Oracle 12c | Tags: Oracle, Oracle 12c | Leave a comment

ORA-14696: MAX_STRING_SIZE migration is incomplete for pluggable database

Posted: October 17, 2013 | Author: justdaveinfo | Filed under: Oracle Certification | Tags: Certification, Oracle | Leave a comment

Oracle Certification BLog with updates on the certification program.