A Simple-column-Name is used to represent a column when
it cannot be qualified by a table-Name or correlation-Name.
This is the case when the qualification is fixed, as it is in a column definition
within a CREATE TABLE statement.
SyntaxSQL92IdentifierExample-- country is a Simple-column-Name
CREATE TABLE CONTINENT (COUNTRY VARCHAR(26) NOT NULL PRIMARY KEY,
COUNTRY_ISO_CODE CHAR(2), REGION VARCHAR(26))