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We know how difficult managing a database can be. Luckily, we’re here to share our experiences troubleshooting, building, improving, and operating them. Browse blogs below, and feel free to comment!

Migrating a Db2 DPF Instance from rsh to ssh

Migrating a Db2 DPF Instance from rsh to ssh

Db2's Database Partitioning Feature (DPF) allows a single Db2 instance to span multiple physical servers — allowing a single Db2 database to scale out to sizes well beyond what is possible on a single physical server. To manage a DPF environment, Db2 needs to be able...

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Query Store in SQL Server 2016

Query Store in SQL Server 2016

Every environment is configured differently; however, we have all experienced alerts being triggered due to unfavorable performance. Oftentimes, before our root cause analysis begins, the issue has resolved itself and/or someone may have rebooted. Although current...

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Common TNS Errors and How to Troubleshoot

Common TNS Errors and How to Troubleshoot

In this blog, I will cover some typical TNS errors that we run across as an Oracle DBA and how to go about troubleshooting the errors. First of all, when you encounter a TNS error you need to understand that it relates to the network communication between a client...

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MySQL Error Invalid lost+found Schema

MySQL Error Invalid lost+found Schema

If within a MySQL instance a schema name such as "#mysql#lost+found" or "#lost+found" is listed when the "show schemas" or “show databases” command is run, it's not a true schema but will appear when MySQL is installed in a root directory on a Linux server. At the...

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MySQL User With wildcard and localhost Hosts

MySQL User With wildcard and localhost Hosts

There's often confusion over why MySQL users are created with a host of localhost in addition to a user created with wildcard, %, for their host. create user 'some_user'@'localhost' identified by 'some_password_here'; create user 'some_user'@'%' identified by...

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