SQLSDM is a "front end" semantic data model to a SQL relational database management system (RDBMS). SQLSDM provides a more semantically complete RDBMS through the implementation of a Domain and Relational Integrity scheme. SQLSDM provides integrity definition functions and a sub-system to interpret SQL commands . Integrity system tables are created through the use of SQLSDM ' s domain definition command and SQL ' s "CREATE TABLE" command. As SQL database update commands are interpreted, SQLSDM uses these integrity tables to enforce domain and referential integrity. SQLSDM operates virtually transparent to the user and provides for greater database consistency and semantic control. Furthermore, SQLSDM is designed and engineered to be a portable "front-end" that may be implemented on any SQL relational database management system.
Library of Congress Subject Headings
SQL; Relational databases--Design; SQL (Computer program language); Database management--Reliability
Department, Program, or Center
Computer Science (GCCIS)
Lodico, Marc Richard, "A SQL front-end semantic data model" (1989). Thesis. Rochester Institute of Technology. Accessed from
RIT – Main Campus