Delimited Identifiers (Metadata Names)
In InterBase dialect 1, object names are not case sensitive, cannot be keywords, and cannot contain spaces or non-ASCII characters.
In dialect 3, object names that are enclosed in double quotes are delimited identifiers. They are case sensitive, can be keywords, and can contain spaces and non-ASCII characters. For example:
SELECT “CodAR” FROM MyTable
is different from:
SELECT “CODAR” FROM MyTable
This behavior conforms to ANSI SQL semantics for delimited identifiers.