Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Clustering Indexes
It may be an excellent idea to keep data of the students in the order of the programme they have registered as most of the data file accesses may need student data of a particular programme only. An index that is formed on an ordered file whose records of a file are physically ordered on a non-key field (that is the field does not have a distinct value for every record) is known as a clustering index.
Figure : A clustering Index on Programme of an employee file
Figure: Clustering index with separate blocks for each group of records with the same value for the clustering field
Please note the following points in the tables:
• Clustering index is one more example of a non-dense index as it has one entry for each distinct value of the clustering index field and not for all records in the file.
can you please explain with the help of suitable example the difference between conflict equivalence and conflict serializability?
Give short note on the following terms:Dirty pages and ETL a.) Dirty pages. These are buffer pages which comprise modifications which haven't been written to disk. b.
Using Relational Algebra which query finds customers, who have a balance of over 1000 ? Using Relational Algebra Π Customer_name( σ balance >1000(Deposit)) is query to find cu
Explain concept of inheritance with support of suitable example. Inheritance Inheritance is one of milestone of object-oriented programming language as it allows a creati
Why did SAP introduce the extended star schema? Explain why it is reported to be better than the traditional schema model?
Give an example of Object Representation For illustration, consider the implementation of a social security number within an employee object that is shown in Figure. The soci
Which element in the database can modified by changing the data dictionary? Data elements in the database can be changed or modified through changing the data dictionary.
Which is a valid SQL type? A valid SQL Should be in CHARACTER it is should be NUMERIC and FLOAT.
Describe the host language? Host Language: You could write applications along with SQL statements embedded inside a host language. The SQL statements give the database inter
Consider the ER schema below for the MoneyMaking supermarket chain problem. Translate the given ER schema into SQL CREATE TABLE statement.
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd