A relational database is like a garage that forces you to take your car apart and store the pieces in little drawers"
and a contrast:
"A Object database is like a closet which requires
that you hang up your suit with tie, underwear,
belt socks and shoes all attached"
"In fact, consider data describing a real apple tree. Putting all the structural data of a tree into a relational database is like cutting the tree into a million pieces, with every part severed from every other part. Each leaf is cut off and given an ID number, with a set of attributes of that leaf, like size, number of lobes, etc. Similarly, all apples, twigs and branches are cut off. Then a set of tables is included to show which leaves went on which twigs, with other tables showing which twigs go on which branches, etc. With the resultant set of many tables it becomes quite a task to reassemble the tree. The good news is that if you want to build a hut from this tree, you can write the computer code to reassemble all the pieces to build a hut, or a anything else, perhaps with the leaves all stuck directly to the trunk, and the apples forming a heart on the door, which is made of branches. But if all you want is to reassemble it back into a tree, and in fact, if you never really wanted to cut up anything but only wanted to understand the tree better, then it might have been better not to cut it all up to start with! "
"A relational database is like a multidimensional Excel spreadsheet. That is, the user can retrieve data across various database rows, columns, and pages rather "
"A relational database is like a large spreadsheet. Each field is a column, each row is an entry. Relational databases use a set of tables to organize data. Each entry must be unambiguously identified Names are not reliable e.g. incorrectly assigned gene function Unique IDs (UID)s are used, e.g. in GenBank these are calledaccession numbers"
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.