Valid Identifiers

In Jethro, you can use identifiers as schema names, table names, view names, column names, table and column aliases (in SELECT statement) and so on.
A valid identifier:

• Is made from a sequence of alphanumeric characters (English letters and digits) and underscore character
• Starts with a letter.
• Has maximum length of 128 characters.
• Is case-insensitive (and stored internally in lower case).
• It can not be a reserved word.