Database security is a critical aspect of any organization's IT infrastructure, as it plays a crucial role in protecting sensitive data and ensuring compliance with various regulations. Oracle databases, in particular, are often targeted by cybercriminals due to their...
As more and more businesses move their operations to the cloud, one of the most common challenges faced is migrating existing on-premise Oracle databases to the cloud. While this move can bring significant benefits, such as increased scalability, flexibility, and cost...
When choosing a database platform for your business, several options are available in the market. Oracle Database is one of the most popular and widely used database management systems, offering a variety of deployment options, including on-premises, cloud virtual...
Ransomware attacks have become a major concern for businesses across the globe. These attacks can cause significant harm to the affected organization's reputation, operational capacity, and financial stability. Oracle databases are no exception to ransomware attacks....
Starting from Oracle19c cloning your oracle home is a bit different, whether you use this method for out of place patching or rolling out patches to multiple servers we no longer use clone.pl, instead oracle recommends using the software-only install option, available...
The Oracle error ORA-04031: unable to allocate nn bytes of shared memory is telling us that Oracle tried to allocate a specific amount of memory for a process and it was unable to do so. I see this more often with legacy or very large and complex ETL processes. The...
This post has been updated from the original content here. When getting an ORA-12560 for an Oracle database on windows, there are a couple of things we should check before doing anything else. The error is telling us that we are trying to connect to the wrong...
This post has been updated from the original content here. The ORA-00257 error is a very common Oracle database error. The error is basically trying to tell us that we have run out of logical or physical space on our ASM diskgroup, mount, local disk, or...
In this blog, I will cover some typical TNS errors that we run across as an Oracle DBA and how to go about troubleshooting the errors. First of all, when you encounter a TNS error you need to understand that it relates to the network communication between a client...
The Linux OS from major vendors, including Red Hat, Ubuntu, and Debian, has defaults set out of the box that works well with minimally spec'd hardware. However, if you want the best performance for your MySQL databases, you need to make changes in how Linux handles...