oracle database
"I think an Oracle database is like a jet engine. It's a very important piece of technology, but I don't need to buy one personally. Every time you go to eBay, you access an Oracle database. Every time you go to Amazon.com, you access an Oracle database. Every time you make a bank deposit, you access an Oracle database. But actually selling it to consumers?"
"In fact, some database administrators say that tuning an Oracle database is like trying to work on a car while it's flying down the highway at 60 mph! Because of Oracle's flexibility, the internal software is phenomenally complex, and there are hundreds of variables that can cause performance problems. The complexity leaves many shops unable to keep their database properly tuned. An Oracle database is constantly changing, and the dynamic nature of tuning and of the Oracle environment makes it difficult for the Oracle database administrator to get a handle on what's going on inside the database."

METAMIA is a free database of analogy and metaphor. Anyone can contribute or search. The subject matter can be anything. Science is popular, but poetry is encouraged. The goal is to integrate our fluid muses with the stark literalism of a relational database. Metamia is like a girdle for your muses, a cognitive girdle.