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What is the main difference between read-only and update methods?
A read-only method does not affect the values of a variable in an object, whereas an update method may alter the values of the variables
Assume that you are responsible for selecting a new DBMS product for Sohar Hospital
distributed quey processing
explain in detail about time stamp orderting/
Q. Describe how an ER schema can be represented by relation schemas and constraints arising from ER design can be mapped to constraints on a relation schema. The entity rela
Express types of information available in MySQL? Information as regards the result of queries: This includes number of records affected by any SELECT or UPDATE or DELETE st
What are the two types of indices? The two types of indices are:- A) Dense index B) Sparse index
external and internal mapping with examples
what is meant semantic query optimization? how does it differ from other query optimization techniques?
What are the advantages of having an index structure? Ans: The index structures commonly provide secondary access paths, which offer alternative ways of accessing the reco
What are the DBMS languages? Briefly explain? Data Definition language (DDL):A database schema is specified through a set of definitions expressed through a special language
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