Database Security






Frequently Asked Questions

+
Ans: In this section we discuss the concepts of concurrent execution of transactions and recovery from transaction failures view more..
+
Ans: A database system is a collection of interrelated data and a set of programs that allow users to access and modify these data. A major purpose of a database system is to provide users with an abstract view of the data. That is, the system hides certain details of how the data are stored and maintained. view more..
+
Ans: Data is converted into information, and information is then evaluated and organised so that it can be used purposefully as knowledge. view more..
+
Ans: This chapter discusses techniques for securing databases against a variety of threats. It also presents schemes of providing access privileges to authorized users. view more..
+
Ans: A database system provides a data-definition language to specify the database schema and a data-manipulation language to express database queries and updates. view more..
+
Ans: Database design mainly involves the design of the database schema. The design of a complete database application environment that meets the needs of the enterprise being modelled requires attention to a broader set of issues. view more..
+
Ans: A relational database is based on the relational model and uses a collection of tables to represent both data and the relationships among those data. view more..
+
Ans: A relational database is based on the relational model and uses a collection of tables to represent both data and the relationships among those data. view more..
+
Ans: A relational database is based on the relational model and uses a collection of tables to represent both data and the relationships among those data. view more..
+
Ans: A database system is partitioned into modules that deal with each of the responsibilities of the overall system. The functional components of a database system can be broadly divided into the storage manager and the query processor components. view more..
+
Ans: A transaction is a collection of operations that performs a single logical function in a database application. view more..
+
Ans: The architecture of a database system is greatly influenced by the underlying computer system on which the database system runs. Database systems can be centralized, or client-server, where one server machine executes work on behalf of multiple client machines. view more..
+
Ans: The term data mining refers loosely to the process of semi-automatically analysing large databases to find useful patterns. view more..
+
Ans: Researchers have developed several data-models to deal with these application domains, including object-based data models and semi-structured data models. view more..
+
Ans: A primary goal of a database system is to retrieve information from and store new information into the database. People who work with a database can be categorized as database users or database administrators. view more..
+
Ans: Information processing drives the growth of computers, as it has from the earliest days of commercial computers. In fact, automation of data processing tasks predates computers. view more..
+
Ans: A relational database consists of a collection of tables, each of which is assigned a unique name. view more..
+
Ans: The database schema is the logical design of the database. view more..




Rating - 4/5
468 views

Advertisements