name dob hiredate ssn payrate salary
Jack Mawbry 12/07/1960 05/15/1998 345-67-8901 20.50 NULL
Jane Simpson 07/04/1982 07/01/2002 234-56-7890 15.45 NULL
Nicky Colson 06/30/1962 06/15/1997 567-89-0123 NULL 50000.00
Randy Abrams 11/21/1978 02/12/1995 678-90-1234 NULL 48000.00
Rick Swanson 05/02/1980 03/01/2001 123-45-6789 10.75 NULL
Samuel Nash 09/18/1955 04/13/1994 890-12-3456 NULL 82000.00
Sarah Jackson 01/23/1972 08/16/1996 456-78-9012 22.60 NULL
Susan Jekel 02/27/1957 01/15/1997 789-01-2345 NULL 64000.00

Table 1 AllEmps
A union mapping stores all of the concrete classes in one table.

Acharavi (Corfu)

Puerto Calero

Orlando

Grand Baie

Playa Blanca (Lanzarote)

Lauder

Pineda de Mar

Costa Teguise

Costa Adeje (Tenerife)

Stavromenos (Rethymno)

Aberfeldy

Zell am See

Hurghada

San Agustin (Gran Canaria)

Saint Osyth

Antalya

Rookley

Side

St. Paul's Bay

Garda (Verona)