Tag: Plan

30 SQL Developer Tips in 30 Days, Day 10: Compare Stuff Side By Side

We try to make comparing things easy to do. When you’re troubleshooting, you frequently need to know why A isn’t quite like B. So let’s look at a few scenarios. Execution Plans or Autotrace Runs Run a plan or autotrace. Pin it. Run another. Right-click on one, and compare with the other. Voila. Looking at […]

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How Many Rows will my Query Return?

You want to know how much pain you are going to inflict on the server and network before you run that ad hoc query? An explain plan can give you an idea of how long it might take to run, and tell you how much data it thinks will be involved. Cardinality – Fancy Word, […]

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Are You Illiterate?

I know you can read, you’re here. But maybe you’re a functioning illiterate. Here’s what I mean. You spend a lot of time in the database writing queries, analyzing data, doing important stuff. Most of the time, things go great for you. You can answer questions for people. You make things happen. The wheels of […]

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SQL Server VS Oracle: Index Monitoring

Jealousy is not an emotion I generally feel for the SQL Server technology stack. I covet their Twitter camaraderie, but I ‘know’ that Oracle can counter just about anything thrown at it. People that Helped Me with this Post I was reminded that even old dogs can be taught new tricks while monitoring the #SQLSaturday […]

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SQL_IDs, Plans, and Baselines, Oh My!

Do you run a 3rd party application that uses Oracle RDBMS under-the-hood? Do you experience performance issues? Frustrated that you do not own the application SQL that is causing the issues? Maybe an upcoming upgrade to 11g might give you some relief. Many of the customers I speak with are unaware of a new 11g […]

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Who Owns Performance in the Database?

Many moons ago, this was a pretty straightforward question. It also had a very easy answer, the DBA owned performance. By that I mean if the database or it’s applications did not perform as expected, it was the DBA who would step in and fix it. Several years ago this began to change. More and […]

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