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Increased parallelism: Since the replicated date has several copies a query can be distributed or can be answered from the smallest loaded site. Also, with more replicas you have greater chances that the required data is found on the site where the transaction is implementing. Hence, data replication can minimise movement of data among sites.
What are the technique to define a schema completely ? A schema is completely define by DDL and DML query language.
The domain that you will model in this assignment is that of courses and students at a university. So as not to make the task too large and unspecified, you will here get a descrip
Attributes having a one value for a particular entity. For instance, Age is a single valued attribute of a student entity. Attributes that have more than single values
Explain the systems development life cycle. This is the traditional method to develop, maintain, and replace information systems that contains the project identification and se
how oracle can be used
Consider the subsequent relations for a database which keeps track of business trips of salespersons in a sales office: SALESPERSON (SSN, Name, start_year, Dept_no) TRIP (SSN, Fr
, write the relational schema, and draw the new dependency diagrams. Identify the normal forms for each table structure you created
(a) Explain briefly the three parts of a relational Model. (b) Contrast the following terms with an appropriate example: (i) stored attribute v/s derived attribute (ii) en
#what is cursor its uses ? Explain it
The natural join is equal to which product? The natural join is equal to Combination of projection and Cartesian product
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