XTIVIA BLOG
ORA-03113 end-of-file on communication channel
This error occurs due to the fact that your connection to the Oracle server is no longer available or that the server couldn't respond to the client's requests. This is usually called by an Oracle server issue or a networking issue. You can start troubleshooting by making sure...
ORA-01722 Invalid Number
ORA-01722 Invalid Number This error occurs when you try to convert a character string into a number, and the string can't be converted into a valid number. So what is a valid number you ask? A valid number to Oracle would be a digit between 0-9, a negative or positive sign at...
SQL Server Cursor Example – SQL Toolbox
Cursors in SQL Server allow developers to iterate through a collection of values, normally based off a select statement. This is very useful for scripts that must apply to many items at once. More often than not that is iterating through database names to make changes to each...
ORA-00600
The ORA-600 is an internal Oracle error that can be reported by a very serious error. A lot of times this error can't be solved by an onsite DBA and needs direct help from Oracle to help troubleshoot the issue. If the trace files from the error don't prove to be useful in...
Tip # 3 – Maintain your SQL Server – Top 10 Tips for SQL Server Performance and Resiliency
Tip # 3 – Maintain your SQL Server Top 10 Tips for SQL Server Performance and Resiliency This article is part 3 of 10 in a series on the most common mistakes that I have seen impacting SQL Server Performance and Resiliency. This post is related to the most common errors I see...
ORA-12154: TNS:could not resolve the connect identifier specified
ORA-12154: TNS:could not resolve the connect identifier specified This is one of the most common Oracle errors and it is basically telling you that you are trying to connect to a database name that is unknown to the system. The most common cause are typos in your connection...
Liferay Performance Enhancement Tips – Lightweight Themes
Liferay themes are an easy way to transform the look and feel of your portal. Theme development is not difficult and can be done with Velocity or FreeMarker templates. You can also create a JSP-based theme but that's less common. We can talk for quite a while about theme...
Dynamic DataTables Headers Using AngularJS
We had a requirement in an AngularJS portlet to make jQuery DataTable columns dynamic. Normally, DataTable fetches a JSON object that contains the headers and uses that object to instantiate the DataTable. Doing it the Angular way is a bit different. The challenge is...
Oracle Software Licensing in the Cloud
It's well known that Oracle has some of the most complicated licensing practices when dealing with virtual hosts/machines. Not only complicated, but also very expensive. I recently work on a project involving a database move to one of the popular cloud environments. I also had...
Tip # 2 – Check your Security – Top 10 Tips for SQL Server Performance and Resiliency
Tip # 2 – Check your Security Top 10 Tips for SQL Server Performance and Resiliency This article is part 2 in a series on the top 10 most common mistakes that I have seen impacting SQL Server Performance and Resiliency. This post is related to the most common errors I see and...