Every column in a schema must have a column name.
Column names are constructed according to the following rules:
Column names have no maximum length.
Column names must begin with an alphabetic character: A-Z or a-z, or \177 to \377 in octal representation, or 7F-FF in hex representation.
Column names must be made up entirely of alphabetic characters, numeric characters (0-9) and/or underscores (_).
Column names are not case sensitive (in other words, avgprice and AVGPrice are the same name).
Within a schema, no two columns can have the same name.
Column names cannot be a CCL reserved word.
The prefix C8_ is reserved for Sybase CEP names.
CCL contains other words that are not reserved but that still have special meanings. In particular, it is not recommended to use the names of CCL functions as column names.