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Database Feed

Oracle Database, Oracle 10g, Oracle 11g, Oracle XE, Oracle RAC, Oracle Instant Client, Oracle Data Guard and Oracle Exadata resources, news, and support articles.

★ How BIG is Oracle OpenWorld?

Oracle OpenWorld

Here is how big it was in 2013. Compare it to its size in 2012. It is safe to assume that it will be bigger in 2014!

SQL Server techniques that mitigate data loss

Natural disasters, cybercriminals and costly internal mistakes can cause companies to lose critical information. If the appropriate business continuity strategies aren't employed, organizations could lose customers or be subject to sustaining government penalties. 

These concerns have motivated database administrators to use programs with strong recovery tools, such as replication, mirroring and failover clustering.


A comparison of sucking data into a table over a db link using DBMS_PARALLEL_EXECUTE.

This particular example is based on something I needed to do in the real world, copying data from one database into another over a db link. Datapump is not available to me. Tables in question happen to be partitioned by a date-like number (boo!) hence some of the specific actions in the detail.

Ferguson: Ten Bloggers Speak Out

Many details about the violent death of Michael Brown in Ferguson, Missouri, remain unclear. What is beyond doubt is the intensity of reactions to this story — in the media and in neighborhoods all over the US (and beyond). Here are ten personal perspectives on this event and its aftermath, from writers representing a diverse cross-section of the community.

Log Buffer #385, A Carnival of the Vanities for DBAs

This Log Buffer edition combs through top notch blog posts from Oracle, MySQL and SQL Server postings around the globe.


You want to test the Oracle Java Cloud? You can get your own 30 day test account & instance. Or you can get a Java account with our permanent test system.

Some ramblings about Oracle R Distribution 3.1.1.

Are ASM rebalance and preferred read working together?

If I add disks into a diskgroup, then during the rebalance operation, ASM needs to read the data coming from the disks already part of the diskgroup to rebalance them on all the disks (including the new ones).

Sharing SQLDeveloper SQL history across several machines with Dropbox

Always check out the original article at for latest comments, fixes and updates.

A quick tip for keeping a single shared SQL history repository among different installations of SQLDeveloper, for the same user, on distinct computers synchronized with Dropbox.
This seems to be working just fine on Mac OS X and SQLDeveloper 4.0.2 however it's a totally unsupported

OTech Magazine Issue 4 - APEX 5 and much more

Well it's the second half of August and this is my first real post for the month. There are two very good reasons for this:

1) We've just completed a major implementation at one of our clients - a tablet based application using APEX, which completely changes the face of a major arm of the business. It's a groundbreaking application with only one peer in the industry - which users are already claiming superiority to and it's had years to mature. It's been a very enjoyable project with a glowing success story - kudos to my Sage colleagues and the entire team.

Making the CDB Common User Without Using C## Prefix….

If you have done any play with the latest release of Oracle database 12c, you must have come across the concept of Common and Local users.

Demystifying Oracle Unpivot

A couple of years ago I posted a simple example using PIVOT, converting rows to columns with the classic example of figures by months.

Oracle 11g R1 also introduced the UNPIVOT function, allowing columns to be converted into rows.

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