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Mention the various user privileges
All privileges directly granted to the user or role.
All privileges granted to roles that have been granted to the user or role.
How many types of users works on database? Users are differentiated through the way they expect to interact along with the system (i) Application programmers-interact with
Data independence seems that "the application is independent of the access strategy and storage structure of data". In other words, the ability to change the schema definition in o
File Manager File manager handles the allocation of space on disk storage. It starts and maintains the list of structures and indices described in the internal schema that is
Logical Operators Rules of Precedence: Order evaluated Operator 1 All comparison operators 2
Name the three major set of files on disk that compose a database in Oracle. There are three main sets of files on disk that compose a database. All the files are binary. These
Define an operator that a Relational Algebra does not have Ans: Relational Algebra does not have Aggregation operators.
What are the various symbols used to draw an E-R diagram (any 3)?
Write short notes on extension and intension? In any data model, it is significant to distinguish among the description of the database and the database itself the description
Using Literal Character String Example: To print IS A as one string with column name employee SELECT ENAME || ' IS A ' || JOB AS "EMPLOYEE" FROM EMP;
Define Thomas write rule Thomas' write rule: The Thomas' write rule is a modification of timestamp-ordering protocol for concurrency control. Assume that transaction T i issue
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