Posts Categorized: Pythian

SQL Server versions – Should you upgrade to the next release?

Today there are five versions of SQL Servers serving at the hearts of business enterprises, and the sixth is coming soon. Current SQL Server versions are 2000, 2005, 2008, 2008R2, 2012 and the upcoming version SQL Server 2014. The question CIOs, VPs of IT and/or IT managers are asking themselves is, “Shall I upgrade SQL…

How To Improve SQL Statements Performance: Using SQL Plan Baselines

The performance of any Oracle database heavily relies on query execution(s). The reasons for any SQL statement’s execution plan changes could include a variety of actions, like gathering optimizer statistics (table, index, schema etc.)  changing optimizer parameters, schema definitions, adding indexes etc.  As experienced Oracle DBAs, we should be aware of the fact that the…

Do AWR Reports Show the Whole Picture?

AWR report is a great source of aggregated information on top activities happening in our databases. I use data collected in AWR quite often, and obviously the easiest way of getting the data out from the AWR is by running the AWR report. In most cases that’s not an issue, but there are certain scenarios when…

Script to Collect Database Information Quickly

As a DBA there are occasions where we are required to collect details from a database which can be used for further analysis. For example, getting the status of the database (i.e. File Size, Free Space, Status of the database, and who is the current owner of the database). This kind of information is required,…

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