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What is object identity?
An object retains its identity even if some or all the values of variables or explanations of methods change overtime.
what is attribute is attribute inheritance in dbms?
We face problem of stock Opening balance and closing balance in Minus
what is Nested relational model? Explain with examples.
Which of the operations constitute a basic set of operations for manipulating relational data? Relational algebra operations constitute a basic set of operations for manipulati
Question 1: a) What is the difference between a non-impact and impact printer? b) Which type of printer is generally used in a supermarket to print your receipt? Describe
How can you Start MySQL Server? To start the mysql program type it is name in the command- line prompt. After starting mysql program just display A welcome letter using the
Define blocks? The database system resides eternally on non-volatile storage, and is into fixed-length storage units known as blocks.
Depending upon the rules we have found, we can classify the locks into two types. Shared Lock: A transaction might be acquiring shared lock on a data item in order to read it
Which method is used to key transformation ? A hash method is used to key transformation.
Having clause This clause is used for producing conditions on grouped information. Example: Find maximum salary and department number of those departments where maxim
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