In this article we will see what to do when one of the Oracle Cluster servers/nodes shows an error and the Cluster Services (CRS) do not start. The symptom When we go to start Cluster Services (CRS): It shows us the… read more
How we check the integrity of databases and how we fix any corruption in SQL Server
In a database there is always the possibility of corruption. This can be either physical e.g. from some disk damage or either logical e.g. wrong values in a table field. In the article we will see how… read more
How can we get emails whenever we have high CPU Usage in SQL Server
In this article we will see a script that creates a SQL Server Agent Job that will notify us by email whenever the CPU exceeds a threshold. It derives the information not from performance counters of the operating system but... read more
Useful commands to manage Oracle Grid Infrastructure / RAC (crsctl / srvctl)
In this article we will see some useful commands to manage databases installed on Oracle Grid Infrastructure. We manage Oracle Cluster Resources (CRS) through the CRSCTL tool and Oracle Database , Listener and… read more
How do we limit the resources that a user can consume in SQL Server
Many times a user in the database can consume all the resources that the SQL Server instance has and no other work can be done by another user. In this article we will see how we can… read more
A disk is full of SQL Server datafiles, what should I do?
Sometimes a disk will suddenly become full. On this disk we may have one base or many, while we may have space on another disk, we must somehow find which datafiles are full. In this… read more
How to install Enterprise Manager Cloud Control for Oracle database monitoring and administration
In this article we will see how to install Oracle Enterprise Manager Cloud Control on Oracle Linux / Red Hat Linux step by step. This tool provides the ability to manage Oracle databases through… read more
Why can't I shrink the transaction log in SQL Server and why is it full?
In a previous article we saw what the Transaction Log is. This time we'll see how we can empty it and make it shrink, we'll also see what we can do case by case when it won't let us. Suddenly… read more
How we find the performance of existing Indexes and which new Indexes SQL Server recommends
In a previous article we saw what indexes are. In this article we will see how to find the status of their hash, if you are using, when they were created, when they were updated and if they are missing indexes recommended by SQL Server.… read more
