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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.
note on hashing technique
Which two tools are used to administer users for Active Directory?
write an SQL statement to create the database in MYSQL server
Consider the relation PERSON. If you want to display details of persons having age less than or equal to 30 than the select operation will be used as follows: σ AGE The resu
Objectives After reading this unit you should be able to: Explain storage of databases on hard disks; Discuss the execution of various file Organisation techniques;
Define blocks? The database system resides eternally on non-volatile storage, and is into fixed-length storage units known as blocks.
What is schema
Determine the language that needs a user to specify the data to be retrieved with no specifying exactly how to get it is Ans: Non-Procedural DML
How many physical thing?
What do you mean by persistence? How you will make your data persistent? Persistent data is the data, which has a longer lifetime than program which has created it. Enabling th
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