DATABASE FUNDAMENTALS
WHAT IS DATABASE MANAGEMENT
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Promotes data sharing
|
|
|
Parent/child relationship promotes conceptual simplicity and data integrity
|
|
|
Database security is provided and enforced by DBMS
|
|
|
Efficient with 1:1 relationships
|
|
|
none of the above
|
Detailed explanation-1: -Advantages of Hierarchical Database Model The model allows you to easily add and delete new information. Data at the top of the hierarchy can be accessed quickly. This model works well with linear data storage mediums such as tapes. It supports systems that work through a one-to-many relationship.
Detailed explanation-2: -One of the key advantages of hierarchical databases is that they allow for fast and efficient data retrieval, since data is organized in a predictable and structured way. The hierarchical databases can be difficult to maintain and update, since changes to the data structure can impact the entire database.
Detailed explanation-3: -What is the Hierarchical Model in DBMS? The Hierarchical Model was the first database management system model. This concept uses a hierarchical tree structure to organise the data. The hierarchy begins at the root, which contains root data, and then grows into a tree as child nodes are added to the parent node.
Detailed explanation-4: -RDBMSes can handle any amount of data, from small to large, while a DBMS can only manage small amounts. Database structure. In a DBMS, data is kept in a hierarchical form, whereas an RDBMS utilizes a table where the headers are used as column names and the rows contain the corresponding values.