SAS/ACCESS Software for Relational Databases: Reference

Oracle Rdb Naming Conventions

A name must start with a letter.
A name can be from 1 to 30 characters long.
A name can contain the letters A through Z, the digits 0 through 9, the underscore (_), and the dollar sign ($). (Although dollar signs are permitted in names, they are also used in some operating system-supplied names. To avoid conflicts with these names, you should not to use dollar signs in your table, view, column, or index names.)
Names are not case sensitive; for example, CUSTOMER is the same as Customer.
A name must end with a letter or a digit.
A name must not be an Oracle Rdb reserved word.
A name must not be the same as another Oracle Rdb database object that has the same type.