What is the differnce between Order by and Group by

1 Answers  

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Explain database partitioning.

0 Answers  

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Two tables emp(empid,name,deptid,sal) and dept(deptid,deptname) are there.write a query which displays empname,corresponding deptname also display those employee names who donot belong to any dept.

0 Answers   Amazon,

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Can a database table exist without a primary key?

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What are database connection details?

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Datatypes are unlimited,true or false?

2 Answers   Infosys,

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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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how node connect with cpu?

0 Answers   IBM,

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What is the use of default key?

0 Answers   Abacus,

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What is Data Modelling?

0 Answers   Informatica,

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You are creating a Index on EMPNO column in the EMPLOYEE table. Which statement will you use?

0 Answers   3i Infotech,

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What is the main difference b/w Teradata and Oracle?

1 Answers   TCS,

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