Posts Categorized: Technical Blog

MySQL Community Dinner at Pedro’s

Pythian organizing an event that by now may be considered a tradition: The MySQL community dinner at Pedro’s! This dinner is open to all MySQL community members as many of you will be in town for the MySQL Conference that week. Here are the details..

Vim::X – VimL is Eldritch, Let’s Write Perl!

Last week, I finally got around writing a few macros to help with conflict resolution in Vim: ” conflict resolution – pick this one / option 1 / option 2 map ,. $?\v^[<=]{7}jy/\v^[=>]{7}?\v^[<]{7}”_d/\v^\>{7}”_ddP map ,< $?\v^[<]{7}<,>. map ,> $?\v^[<]{7}/\v^[=]{7}<,>. ” … or keep’em both map ,m $?\v^[<]{7}”_dd/\v[=]{7}cc/\v[>]{7}”_dd With that, I can go from conflict to…

RMAN – Validating Archivelog Backup

There are many posts out there about validating backup. However, none seem to address some recent concerns a client of mine had. Currently, backup validation is performed once a week and the question asked,  “How to validate all archivelog backup?” List Backups – [D}atafile and [A]rchivelog backup from Incremental Level 0/1 RMAN> list backup summary;…

What Happens When Active DB Duplication Goes Wrong?

There are many blog posts out there about active database duplication. However, they were all tested in an ideal environment or condition. What happens when a tablespace is created during the middle of active duplication and how to resolve the error? Read on if you would like to know. For my test case, I created…

SQL Server Integrity Check – A Necessary Routine

Today I’ll be discussing Integrity Check on SQL Server – we have some very good info in the community, but I’d like to summarize my thoughts here. When a DBA talks about Integrity Check, the conversation is usually redirected to one subject: CheckDB. And yes, we are going to talk about it in today’s post….

RMAN 12c : Say goodbye to your backup when dropping your PDB

I was working on my presentations for IOUG Collaborate, and I came upon this strange behaviour in RMAN 12c (12.1.0.1.0) which to me, shouldn’t happen. Seems that when you do a DROP PLUGGABLE DATABASE , it is the equivalent of DROP DATABASE INCLUDING BACKUPS. This means that if you need to restore your PDB later…

SQL Server Statistics: Maintenance and Best Practices

What are Statistics? There are multiple paths a database can use to answer a query, some of them being faster and more efficient than others. It is the job of the query optimizer to evaluate and choose the best path, or execution plan, for a given query. Using the available indexes may not always be…

Making Oozie Logs A Little Easier On The Eyes

Today we’re having a quick one. Earlier during the day, I had to peruse an Oozie log for the first time. And it looked like: 2014-02-11 20:13:14,211 INFO ActionStartXCommand:539 – USER[running_user] GROUP[-] TOKEN[] APP[some-big-job-workflow] JOB[0004636-140111040403753-oozie-W] ACTION[0004636-140111040403753-oozie-W@:start:] Start action [0004636-140111040403753-oozie-W@:start:] with user-retry state : userRetryCount [0], userRetryMax [0], userRetryInterval [10] 2014-02-11 20:13:14,212 WARN ActionStartXCommand:542 – USER[running_user]…

2013 Year in Review – Oracle E-Business Suite

Here are the Top 5 things in Oracle E-Business Suite world that will have major impact in 2014 and beyond. 1. Oracle E-Business Suite 12.2 Now Available 2013 started on a low note in Oracle E-Business Suite (EBS) World. Many people were expecting some announcement related to upcoming EBS release during Openworld 2012. But all…

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