Related Questions

Which of the following are objective database and not a relational database?
A Web SQL Database
B FileSystem API
C IndexedDB
D User data
Which of the following is not characteristic of a relational database model?
A tables
B treelike structure
C complex logical relationships
D records
E None of the above
In an enterprise-class database system, business users interact directly with database applications, which directly access the database data.
A True
B False
In an Enterprise-class database system, business users interact directly with database applications that interact with the DBMS, which directly accesses the database data.
A True
B False
A rule of thumb for choosing indexes for a relational database includes which of the following?
A Indexes are more useful on smaller tables.
B Indexes are more useful for columns that do not appear frequently in the WHERE clause in queries.
C Do not specify a unique index for the primary key of each table.
D Be careful indexing attributes that have null values.
Which of the following is true for a relational database?
A Data is represented by tables.
B It is difficult to access data.
C Complex programs have to be written for simple queries.
D All of the above.
Datasets which reside on the user's hard drive are created by ADO.NET to facilitate the transformation of XML documents to and from relational database constructs.
A True
B False
Which language has recently become the de-facto standard for interfacing application programs with relational database system?
A Oracle
B SQL
C dBASE
D 4GL
E None of the above
what represents a row in a relational database?
A variable q
B tuple
C entity
D field
When transforming an entity-relationship model into a relational database design, each entity is represented as a table.
A True
B False

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