Known issues with upgrading ODA to 18.3 and how to avoid them

Recently, when I worked on upgrading ODA X7-2 S/M/L from version 12.2.1.4.0 to version 18.3.0.0.0. I hit two known issues after patching server components. Issue# 1: Onboard public network interfaces do not come up after patching or imaging. Issue# 2: Upgrading to 18.3 can automatically result in ADVM processes consuming Excessive CPU and IO during… read more

On-Premise Oracle Database Backup Using Oracle OCI Backup Cloud Service

Oracle Backup Cloud Service provides a secondary, off-site backup location in the cloud with practically  unlimited capacity. The service also ensures that backups are encrypted and available when are needed. Off-site backup is traditionally accomplished by sending backups to tape and shipping them to a secure location. This is a complex task that requires hardware,… read more

Oracle Active DataGuard on AWS RDS

Reading the latest updates and news I found that AWS has introduced a read-only replica for their AWS RDS for Oracle with the Active DataGuard technology behind that. It allowed clients offload reporting and some read-only activity to the standby freeing the primary Oracle database for transactions. It was possible to use the Data Guard… read more

Oracle 19c on LiveSQL

I used to write about the Oracle free service for developers livesql.oracle.com in the past. For those who work with Oracle databases and haven’t tested it I recommend go and try. It runs with a “SQL Developer like” interface with the ability to test syntax for your SQL queries, packages or procedures and provide a… read more

What Big Data REALLY Is (And Isn’t)

Big Data… We’ve all heard of it at this point, this particular buzz-word has managed to penetrate to every level of business. Yet when you ask anyone in the business (even many in the IT, Technology, and Data spaces) “What is big data?” you get responses like: “It’s data, that is really… Big… Takes up… read more