Logical Database Design – True or False
1. An enterprise key is a primary key whose value is unique for a given relation. A. True…
Modeling Data in the Organization – True or False
1. An attribute is a person, place, object, event in a user environment. A. True B. False 2.…
The Database Environment – True or False
1. All enterprise resource planning (ERP) systems are heavily dependent on databases to store the data required by…
JDBC, Java Server Pages, and MySQL – True or False
1. MySQL is just as powerful as Oracle and is half the price. A. True B. False 2.…
ODBC, OLE DB, ADO, and ASP – True or False
1. A file data source is one that is local to a single computer. A. True B. False…
Managing Databases with Oracle – True or False
1. Indexes are created to enforce uniqueness on columns and to enable fast retrieval by column values. A.…
Database Redesign – True or False
1. A correlated subquery is processed as a nested subquery. A. True B. False 2. A regular subquery…
Data Models into Database Designs – True or False
1. A foreign key is used to implement relationships between tables. A. True B. False 2. The terms…
Database Design Using Normalization – True or False
1. When building a database from an existing set of tables, we may safely assume that referential integrity…
Introduction to SQL – True or False
1. The condition in a WHERE clause can refer to only one value. A. True B. False 2.…