The move expands Oracle Big Data Appliance's offerings of hardware and software offerings geared towards high performance and scalable data processing for Big Data by two solid products. Cloudera Distribution Including Apache Hadoop is the industry's most widely deployed distribution of Hadoop in both commercial and non-commercial settings. Described as being 100 percent open source, CDH is also regarded as the most tested, reliable, and stable product of its kind.
From 11gR2 moving the AUD$ table to another tablespace using dbms_audit_mgmt, has been officially introduced/supported. DBMS_AUDIT_MGMT enables audit administrators to manage the various audit trail types like database audit trails, operating system (OS) audit trails, and XML audit trails. It is installed by default in Oracle 11.2 and makes thing easier. SQL> SELECT table_name, tablespace_name
In Oracle database 11g, a new feature/enhancement has potential of bringing down the application due to multiple sessions hitting database with wrong password. As per Bug 7715339 – Logon failures causes “row cache lock” waits – Allow disable of logon delay [ID 7715339.8] In 11g there is an intentional delay between allowing failed logon attempts [...]
If you are not familiar with R, this is the description from the R site: R is a language and environment for statistical computing and graphics. I encountered R at the Erasmus university, where I am working on a project with DNA data which is put in an Oracle database (see: http://huvariome.erasmusmc.nl/ (It’s down at the moment)).
I recently bought myself a Kindle – the keyboard 3G version. Keyboard as I know I will want to add notes to things and the 3G version for no better reason than some vague idea of being able to download things when I am away from my WiFi.
Oracle has announced a new patching strategy for Exadata, starting with databases running 184.108.40.206. Oracle will be moving away from the monthly bundle patch philosophy, which was panned by many administrators as coming too often to keep up with, given the tight schedules held around most Exadata systems. Instead, Oracle will be releasing a Quarterly Database Patch for Exadata, or QDPE. The QDPE will most likely be released in conjunction with the standard critical patch updates (CPUs).
In one of my databases, one application query suddenly started to pick Nested-Loop joins instead of Hash-Joins and took almost 6 hours to complete which gets completed in less than 10 secs with Hash-Joins. The same query in another similar database with same configuration and same data is doing fine and using hash joins. There is [...]