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Difference between Operating System and Database Security
Security within the operating system can be executed at various levels ranging from passwords for access to system, to the isolation of concurrent implementing processes with the system. Though, there are a few differences among security measures taken at operating system level as compared to those that of database system. These are:
Figure shows the architecture of a database security subsystem that can be found in any commercial DBMS.
Figure: Database Security subsystem
What are the storage types? The storage types are: a) Volatile storage b) Nonvolatile storage
Define database management system? Database management system (DBMS) is a set of interrelated data and a combination of programs to access those data.
Question 1 Explain the concept of database recovery management. Explain the different levels of backup used for recovering data Question 2 What are the different types of par
Describe log based recovery The most usably structure for recording data base modification is the LOG the log is a sequence of log records recording all the update activities i
What is conceptual schema? The schemas at the view level are known as subschema that describe dissimilar views of the database.
What is the use of RAID? A variety of disk-organization methods, collectively called redundant arrays of independent disks are used to better the performance and reliability.
Attributes having a one value for a particular entity. For instance, Age is a single valued attribute of a student entity. Attributes that have more than single values
Discuss along with examples about several types of attributes present in the ER model? Types of Attributes are: • SIMPLE attributes are attributes which are drawn from the ato
how to find entities
explain normalisation
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