The actual queries, however, may vary a lot depending on the database and the models used by each database. We hope you can learn the query language quickly by going through these examples. Some common class names are Sequence, Author, Paper, and Gene.
Tags are fields for information within a class.
For example, tags in the class Author may be Mail, Fax, Email. There can be any number of tags and subtags within a class. This will give you the information neccesary to construct queries for the data you want to see. It is important to keep in your mind that not all databases use the same model. Each organism has developed a database structure to suit their individual needs, although many class names and constructs are similar.