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I was recently given a task to move a few multi-terabyte databases inside of an availability group from SAN A to SAN B within a 10-minute window. The good news was there was plenty of time to plan and prepare. For the purpose of this example, I will be using a very...
Replicating Indexed Views as tables, instead of replicating all base tables and then creating an indexed view against those base tables, allows for a smaller subset of data to be replicated over. If you replicate base tables and then create an indexed view,...
The Oracle ORA-01017: Invalid Username/Password; Logon Denied is an error that comes up pretty frequently it can be caused by several things, though most of the time it's simply just the wrong password being used. One thing that we should check if we're pretty sure we...
SUMMARY: When configuring an SSIS OLE DB connection in Microsoft Visual Studio 2015 fails to correctly register the 'Connect Timeout' setting of 0 (unlimited), administrators must utilize specific workarounds—either within the Connection Manager or through an XML...
There are situations where you would want to change the Windows cluster configuration so a failover does NOT occur. Failovers can occur due to quorum (error: The Cluster service is shutting down because quorum was lost) can't be reached for a short period of time when...
Ahhhhhh—the fresh smell of a brand new laptop, being pulled out of its box for the first time. Breathe it in. Your tax return really paid off this year, but your shopping doesn’t end with this new device. On the contrary, you’ve got a spree ahead of you. This laptop...
SQL Server Statistics are small, lightweight objects that describe the distribution of data in a SQL Server table or column. The SQL Server query optimizer uses statistics to estimate how many rows will be returned by parts of your query. This heavily influences the...
When you see this ORA-12560 error on Windows, you need to check these two things before anything else. Make sure the windows service is up and running Make sure your ORACLE_SID is set to the instance name you're trying to connect to If either one or two are not...
Have you ever run into an SSPI error in SQL Server Management Studio (SSMS)? In this blog entry, we will show you 2 ways you can fix your SSPI error in SQL Server. SSPI Error: Cannot connect. The target principal name is incorrect. Cannot generate SSPI context Details...
Most Db2 DBAs administer Db2 at the command line. The command line provides a rich and powerful interface with Db2, and has a lot of options. Many other users may wish to access Db2 at the command line as well. Developers and system administrators are just a few of...