Introduction to Database System One of the reasons why OODBMSs have not been widely used for business information systems is that OOP is obsolete. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The term _____ is sometimes used to refer to a data file in which all the records have the same record format, that is, the same field names, field lengths, and data types. Table Flat file Database Data structure None of these Table Flat file Database Data structure None of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is not a restriction for a table to be a relation? No two rows in a table may be identical. The columns must be ordered. All of the entries in any column must be of the same kind. The cells of the table must contain a single value. No two rows in a table may be identical. The columns must be ordered. All of the entries in any column must be of the same kind. The cells of the table must contain a single value. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following products was an early implementation of the relational model developed by E.F. Codd of IBM? R:base dBase-II DB2 IDMS R:base dBase-II DB2 IDMS ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In SQL, which command(s) is(are) used to create a synonym for a schema object? CREATE SCHEMA CREATE SYNONYM All of the listed here CREATE SAME CREATE SCHEMA CREATE SYNONYM All of the listed here CREATE SAME ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An attribute that names or identifies entity instances is a(n): entity. attribute. relationship. identifier. entity. attribute. relationship. identifier. ANSWER DOWNLOAD EXAMIANS APP
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