TY  - BOOK
AU  - Dietrich,Suzanne Wagner
TI  - Understanding relational database query languages
SN  - 0130286524
PY  - 2001///
CY  - Upper Saddle River, NJ
PB  - Prentice Hall
KW  - Relational databases
KW  - Query languages (Computer science)
KW  - SQL (Computer program language)
N1  - 'An Alan R. Apt book.'; Includes bibliographical references (p. 166-169) and index
ER  -