Relational Databases For each table, identify the primary key and the foreign key(s). If a table does not have a foreign key, write None in the space provided. PRIMARY KEY FOREIGN KEY Truck TRUCK_NUM BASE_CODE, TYPE_CODE Base BASE_CODE TYPE_CODE Do the tables exhibit entity integrity? Answer yes or no, and then explain your answer. ENTITY INTEGRITY EXPLANATION Truck All rows under the primary key TRUCK_NUM are uniquely identified and there are no null entries Base All rows under the primary key BASE_CODE are uniquely identified and

Relational Databases in e-Commerce Of the many uses of relational databases throughout enterprise software their use for supporting e-commerce initiatives and programs provides a foundation for assessing their performance at diverse data and taxonomy management, and scalability of transactions as well. The scalability, security and speed of relational databases when used for e-commerce tasks push them to the limits of performance and customization as well. An example of this is the

This is one of the greatest limitations of this technology. A second major disadvantage of RDBMS-based systems is their lack of support for image- and spatial-based databases that include Computer-Aided Design (CAD) drawings, 3D rendering and model-based data. Their table-based structure is inefficient in defining the attributes of these data types and lacks the necessary data tagging and data types to manage imaging and CAD-based design files and data

They in short link and map ideas that already exist, creating real time answers to questions as they are applied to new and archived knowledge or action plans. According to IDC reports, most data warehouses will be stored in a columnar fashion and not in rows, reporting and data collection problems will be solved with databases that have no formal schema at all, horizontal scalability through clustering will be achieved

Standard-Relational and Object-Relational Databases Software development has experienced evolution over the past few decades given the increasing demands for better information systems in today's society, especially in the modern business environment. The evolution of software development during this period has also been influenced by the tremendous changes in the ways with which computers are used and programmed. The changes in software development have contributed to the emergence of different categories of

" "STUDENT INFORMATION TABLE" ( "STUDENT ID" CHARACTER (4) NOT NULL, NAME CHARACTER (25) NOT NULL, "STREET NUMBER" CHARACTER (10) NOT NULL, "STREET NAME" CHARACTER (25) NOT NULL, CITY CHARACTER (25) NOT NULL, STATE CHARACTER (10) NOT NULL, EMAIL CHARACTER (25) NOT NULL, "PHONE NUMBER" CHARACTER (15) NOT NULL ); CONNECT RESET; SQL FOR Book_Information CONNECT TO LIBRARY; CREATE TABLE "USER"; CREATE TABLE BookInformation ( "BookISBN" CHARACTER (10) NOT NULL; "AUTHOR" CHARACTER (25) NOT NULL; "TITLE" CHARACTER (50) NOT NULL; "PRICE" CHARACTER (10) NOT NULL; CONNECT RESET; SQL STATEMENT FOR