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Define a property that is not a property of transactions? Ans: Concurrency is not a property of transactions
List the table modification commands in SQL? A) Deletion B) Updates C) Insertion D) Update of a view
Creating views with check option : This option limits those updates of data values that cause records to go off the view. The following instance tells this in more detail: Examp
Having clause This clause is used for producing conditions on grouped information. Example: Find maximum salary and department number of those departments where maxim
These are interactive interfaces, graphical that hide the difficulty of the DBMS and query language behind an intuitive, simple to understand, and convenient interface. This permit
What is Specialization? Specialization: Specialization permits you to describe new types of information (new structural types or latest domains of information), although reusin
For each m:n relationship type R, we make a new table (say S) to represent R. We also contain the primary key attributes of both the participating entity types as a foreign key att
which component of DBMS can be embedded in a program? The data manipulation language (DML) is a component which is embedded in a program.
Reflects organisational structure: Many organizations are distributed over various locations. If an organisation has many offices in dissimilar cities, databases used in such an ap
draw ER diagram of student entity and course entity where attribute of student entity are student roll, student name, student phone and student address and attribute of course enti
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