Answer / Naveen Dev Verma

Extension refers to the physical representation of a schema, including the disk space used and storage structure. Intension, on the other hand, refers to the logical representation of a schema, including the attributes, relationships, and integrity constraints.

Explain the record term used in database.

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How to implement database security?

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What is table scan and index scan?

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How many types of normalization? What is the use of it?

1 Answers   Accenture,

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What is a database example?

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List the properties of a transaction.

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How does rows store in Teradata

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What is the differnce between Order by and Group by

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what is tkprof tool and how it is used???

1 Answers   Genpact,

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london school of science and technology has a software development unit,known as lsst solutions,which is responsible for developing and implementing software throughout the collegejames tristan keeps a record of all student details in the college including student id,name,and start date and phone number.There are many courses offered by LSST. For example MBA, MSc, BSc, BABS, DF, English etc. Each course id identified by course id, description, duration. Each course has many semesters. Each semester takes place during a particular term. Semester details and term details are required to be stored in the database. Each course has many subjects and same subject may be offered in many courses. For each subject many details such as Subject code, name, result and attendance are required to be stored. Every subject has mainly two assessments; one assignment and one exam. Assignment is worth of 30% and exam 70% respectively. You have been appointed as a database designer. Your job is to provide ERD with all possible entities and relationships. Note: Feel free to make necessary assumptions 3: Assignment Tasks. 1. Create an ERD for the above problem 2. Translate the ERD to Relational Data model (RDM) 3. Implement the RDM by creating the tables 4. Populate the database with your own data. 5. SQL Queries for the following tasks a. List all student details in each course along with course details b. Count and display number of students in each course. c. List student name, course name, assessment description, marks for all students.

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WHAT IS OPM?(IN DETAILED)

1 Answers   L&T,

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What is database client?

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