Hashing algorithm converts a primary key value into a record address.
Hashing algorithm converts a primary key value into a record address.
Which of the following is an advantage of partitioning?
Which of the following is an advantage of partitioning?
A pointer is a detailed coding scheme recognized by system software for representing organizational data.
A pointer is a detailed coding scheme recognized by system software for representing organizational data.
In general, larger block sizes are used for online transaction processing applications and smaller block sizes are used for databases with a decision support or data warehousing system.
In general, larger block sizes are used for online transaction processing applications and smaller block sizes are used for databases with a decision support or data warehousing system.
Denormalization and clustering can work well to minimize data access time for small records.
Denormalization and clustering can work well to minimize data access time for small records.
The fastest read/write time and most efficient data storage of any disk array type is:
The fastest read/write time and most efficient data storage of any disk array type is:
A secondary key is which of the following?
A secondary key is which of the following?
It is usually not very important to design the physical database to minimize the time required by users to interact with the information systems.
It is usually not very important to design the physical database to minimize the time required by users to interact with the information systems.
Two basic constructs to link one piece of data with another piece of data: sequential storage and pointers.
Two basic constructs to link one piece of data with another piece of data: sequential storage and pointers.
What is the best data type definition for Oracle when a field is alphanumeric and has a fixed length?
What is the best data type definition for Oracle when a field is alphanumeric and has a fixed length?
A field represents each component of a composite attribute.
A field represents each component of a composite attribute.
When storage space is scarce and physical records cannot span pages, creating multiple physical records from one logical relation will minimize wasted storage space.
When storage space is scarce and physical records cannot span pages, creating multiple physical records from one logical relation will minimize wasted storage space.
The three newest database architectures in use today are relational, multidimensional and hierarchical.
The three newest database architectures in use today are relational, multidimensional and hierarchical.
An extent is a contiguous section of disk storage space.
An extent is a contiguous section of disk storage space.
What is the best data type definition for Oracle when a field is alphanumeric and has a length that can vary?
What is the best data type definition for Oracle when a field is alphanumeric and has a length that can vary?
If a denormalization situation exists with a many-to-many or associative binary relationship, which of the following is true?
If a denormalization situation exists with a many-to-many or associative binary relationship, which of the following is true?
A rule of thumb for choosing indexes for a relational database includes which of the following?
A rule of thumb for choosing indexes for a relational database includes which of the following?
Which of the following improves a query's processing time?
Which of the following improves a query's processing time?
The primary goal of physical database design is data processing efficiency.
The primary goal of physical database design is data processing efficiency.
A multidimensional database model is used most often in which of the following models?
A multidimensional database model is used most often in which of the following models?
Which of the following is not a factor to consider when switching from small to large block size?
Which of the following is not a factor to consider when switching from small to large block size?
A bitmap index is an index on columns from two or more tables that come from the same domain of values.
A bitmap index is an index on columns from two or more tables that come from the same domain of values.
If a denormalization situation exists with a one-to-one binary relationship, which of the following is true?
If a denormalization situation exists with a one-to-one binary relationship, which of the following is true?
Sequential retrieval on a primary key for sequential file storage has which of the following features?
Sequential retrieval on a primary key for sequential file storage has which of the following features?
Which of the following are integrity controls that a DBMS may support?
Which of the following are integrity controls that a DBMS may support?
Some advantages of partitioning include: efficiency, security, and load balancing.
Some advantages of partitioning include: efficiency, security, and load balancing.
Data-volume and frequency-of-use statistics are not critical inputs to the physical database design process.
Data-volume and frequency-of-use statistics are not critical inputs to the physical database design process.
The blocking factor is:
The blocking factor is:
Selecting a data type involves which of the following?
Selecting a data type involves which of the following?
Distributing the columns of a table into several separate physical records is known as horizontal partitioning.
Distributing the columns of a table into several separate physical records is known as horizontal partitioning.
