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!
Consider the relations EMP(ENO,ENAME,AGE,BASIC_SALARY) WORK_IN(ENO,DNO) DEPT(DNO,DNAME,CITY) Express the following queries in SQL(i) Find names of employees who work in a deptt. in Delhi.(ii) Get the deptt. number in which more than one employee is working.(iii) Find name of employee who earns highest salary in ‘HR' department.
(i) select ENAME from EMP, WORK_IN, DEPT where EMP.ENo= WORK_IN.ENO and WORK_IN.DNO= DEPT.DNO and CITY= ‘Delhi'; (ii) select DNO from WORK_IN group by DNO having count(*) >1 (iii) select ENAME from EMP e where BASIC_SALARY >= (select max(BASIC_SALARY) from DEPT,WORK_IN where DNAME = ‘HR' and e.ENO = WORK_IN.ENO and WORK_IN. DNO= DEPT.DNO)
Describe the static hash file with buckets and chaining and show how insertion, deletion and modification of a record can be performed. In static hash file organization, the wo
Explain the conventions (relationships) for displaying an ER schema as an ER diagram.
Define Radix conversion method One clever way to transform binary numbers to BCD notation (binary-coded decimal) is the "double dabble algorithm". It can be adapted to transfo
Define Atom of domain relational calculus An atom has the outline 1 , x 2 , ... , x n > -> r , in which r stands for a relation on n attributes and x 1 , x 2 , ... , x n ar
What is a query tree? Ans: A query tree, as well known as operator graph, is a tree data structure that corresponds to a relational algebra expression. It denotes the inpu
Find the names of all Albums that have more than 30 tracks. Result: (name: varchar(255))
what is union compatable?
Ways for Selecting Data Structure Algorithms operate on data structure. Therefore, selection of the best algorithm means selecting the best data structure from whole bunch. Th
Give an example of multiple inheritance. One example of multiple inheritance is a committee for students affair which include faculty and administrative staff member.
what is Mapping Constraints? with examples
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