Db2 Experts on a Data Science Quest
According to one of the definitions from the UrbanDictionary, adding the words “in bed” to any sentence can make that sentence “more interesting”. I like to think that the Db2 LUW world equivalent of that is taking a task – such as working with Db2 copies – and adding words “…on Windows”.… Read the rest
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Recently I was forced outside my comfort zone and asked to vet various open source BI tools. I was a report developer in a past life, a database administrator supporting datamarts at various employers, and even supported Cognos backend databases. I thought my past experience gave me an edge when it came to evaluating BI tools.… Read the rest
Some time ago, I wrote a post that suggested using the NUM_LOG_SPAN database configuration parameter to prevent long-running transactions from filling your transaction log.
Using NUM_LOG_SPAN will indeed prevent the problem of long running transcations causing log file saturation, but what if you just want to find applications could become a problem, before the problem happens?… Read the rest
A number of new clients I’ve worked with lately have had minor or major runstats or reorg issues. I have tons of advice on runstats and reorgs across many blog entries, but I don’t have one place where all that advice is brought together.… Read the rest
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It is no secret that I’ve been doing more work with DB2 on Windows lately. I know a number of clients who are looking for DBAs with experience with DB2 on Windows and are frustrated that they cannot find more candidates.… Read the rest
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The database directory is something many of us use every day. It includes informaiton for connecting to databases, both local and remote, as well as additional information like alternate servers and filesystems where database directories reside. Getting just the local database names out of it may take a bit of practice.… Read the rest
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ADMIN_MOVE_TABLE is an administrative stored procedure introduced in DB2 9.7. The intent is to provide a tool that can be used to perform an online move of a table, while transactions are still occurring against the table. Moves can be used to change what tablespace a table is in, convert a table to MDC, change the table name, perform several changes that would normally require reorgs, reduce the size of a column, and perform other changes.… Read the rest
Continue reading »When I started working with DB2 (on versions 5 and 7), the only option for seeing what was going on in the database was snapshots. I spent a fair amount of time parsing the data in snapshots with Perl scripts to filter out only the data I wanted to see.… Read the rest
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Any DBAs faced with having to administer and maintain a large number of instances and databases will quickly find themselves swamped with work unless they learn to script most of their workload. Of course, the benefits of scripting do not end there. … Read the rest
Continue reading »Having just solved this problem for the second time in two weeks, I thought I’d blog about it to make it easier to find the next time.
This genereally occurs when you are executing a PowerShell script using the IBM.Data.DB2… Read the rest
Continue reading »Not long ago, I posted some of the details of using PowerShell as your command line for DB2 on Windows. I am definitely addicted to PowerShell as my command line when I have to work on Windows servers.
I also have to write some scripts for some Windows systems.… Read the rest
Continue reading »One of the awesome things about running scripts locally on a DB2 server is that if they’re run as a privileged user, you do not have to specify the password. This makes for easier scripting without storing or encrypting passwords. When I first connected to a database with PowerShell, it took me a bit to figure out how to do the password-less local connection, so I thought I would share.… Read the rest
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