Posts Categorized: Technical Blog
After an inauspicious start, my 7th visit to Birmingham for the UKOUG Conference is in full swing. As in the past, the quality of the presentations is outstanding and the biggest challenge to the attendee is to decide which of the 3 concurrent sessions to attend.
For those of you in the New York City area, I’ll be speaking at the NYOUG joint BI/DW and Web SIG meeting. The topic will be a case study of Pythian’s Exadata implementation at LinkShare.
I’ll be writing a series of articles about disaster recovery and what RPO/RTO/SLAs are and how they fit into the whole disaster recovery strategies. Before I dive into the “technology” part of the PPT ingredient for a successful HADR implementation, I will talk about the people and the process part first..
Microsoft introduced Change Data Capture (CDC) technology in SQL Server 2008. This technology captures DML (insert/update/delete) changes to a table. After CDC is enabled for a database and a given table, one can use cdc.fn_cdc_get_all_changes_ function to query changes made to the table. The challenge was to produce a “log” table with columns like this…
When applying Database October 2010 CPU patch (or any patch for that matter) to the 10.2.0.4, on HP-UX, you might encounter the following errors, when running the opatch utility…Here’s a quick fix.
Who from Pythian are at the UKOUG conference this year? In additional to myself, it’s Christo Kutrovsky, Daniel Fink, Paul Vallee and Andrew Poodle. Christo, Dan and myself are presenting, Andrew is helping organization of MySQL track as a MySQL SIG Chair and Paul… well, I’d say Paul is a slacker so he is covering the beer tap to pay up! :) It’s close to 2am – gotta get some sleep before tomorrow.
The Oracle Enterprise Manager Grid Control monitoring plug-ins for Exadata have been released. This is great news for Exadata users, since important components like InfiniBand switches previously had no direct monitoring. The plug-in bundle includes five separate monitoring plugins, here they are.
Winter has started and the holiday season is approaching fast. With the chillness of winter and festive mode induced by the holidays, bloggers across the planet are coming up with more and more exciting ideas. Let’s start with sizzling Log Buffer #207.
If there is no much useful information in v$session_longops and space for the segment is already allocated how to get the same “rows completed” value of worker status as in intercative mode but using sql script? With small modification of example from the documentation I came with the PL/SQL block to get value of one Data Pump Import worker status attributes…
This blog post mentions some of very important components of Exadata Storage Server, which are physical disks, cell disks, grid disks and ASM disks and their correspondence.