19.7.0

Special characters show junk in CLOB columns after upgrade to Oracle 19.7.0 with JDBC

When you’d copy & paste the above title into a search engine, you may come across a very similar sounding blog post I wrote two years ago. Today, my dear colleague Dirk asked me on behalf of a customer if it’s possible that this bug is back in 19.7.0. Of course, I said “No”, for sure not. Bug 26380097 was fixed in Oracle 18c already. Gladly, Dirk insisted. So I checked the SR his customer opened.

And now I can write an unplanned blog post about Special characters show junk in CLOB columns

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Do you love unexpected surprises? SYS_AUTO_STS in Oracle 19.7.0

Last week I recorded seminars – and I wanted to garnish the Performance part with demo recordings from our Hands-On Lab. I used the Hands-On Lab instructions we published. And while I edited a recording, I realized that there was something new I haven’t seen before. Do you love unexpected surprises? SYS_AUTO_STS in Oracle 19.7.0? Of course you do …!

Do you love unexpected surprises? SYS_AUTO_STS in Oracle 19.7.0

Photo by Pete Wright on Unsplash

What happened?

In my environment I run load against my database, I collect statements from AWR and from Cursor Cache into two separate SQL Tuning Sets (STS). And then I upgrade my …

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DBMS_JOB one-off patch needed for Oracle 19.3.0 – 19.7.0

A while ago I blogged already about this behavior change for DBMS_JOB in Oracle Database 19c. Many of you are aware of this. But today I learned something new about it. Kudos to Alexey Makhmutov for bringing this to my attention. There is a very important fix you will need on top in 19c to avoid performance issues. If you rely on jobs with the old job interface, take note: DBMS_JOB one-off patch needed for Oracle 19.3.0 – 19.7.0

DBMS_JOB one-off patch needed for Oracle 19.3.0 - 19.7.0

Photo by Christopher Burns on Unsplash

What is the problem?

As you can read from there is a internal …

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