TY  - BOOK
AU  - Date, C J.
TI  - Sql and relational theory: : how to write accurate sql code 
SN  - 9789352132652
U1  - 005.7402  3
PY  - 2009///
CY  - New Delhi
PB  - Shroff  Publishers and Distributors Pvt Ltd
KW  - Types and domains
KW  - No duplicates no nulls
KW  - Base relvars base tables
KW  - Sql and relational algebra I
KW  - Sql and constraints
KW  - Using logic to formulate sql expressions
KW  - Relational model
ER  -