USING bug
The Oracle Developer Community forum often sees SQL that is hard to read – sometimes because it’s a brutal tangle of subqueries, sometimes because the format it bad, sometimes because the use of table...
View ArticleOrder By
This is a brief note with an odd history – and the history is more significant than the note.While searching my library for an example of an odd costing effect for the “order by” clause I discovered a...
View ArticleCase and Aggregate bug
The following description of a bug appeared on the Oracle Developer Community forum a little while ago – on an upgrade from 12c to 19c a query starting producing the wrong results on a simple call to...
View ArticleFlashback Bug
Here’s a problem with the “flashback versions” technology that showed up at the end of last week. There’s a thread about it on the Oracle Developer community forum, and a chain of tweets that was my...
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