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Consider the following relations:
BRANCH( bno, street, area, city, pcode, Tel_no, Fax_no) STAFF( Sno, Fname, Lname, address, position , salary, bno) Express the subsequent queries in SQL: (i) List the staff who work within the branch at ‘163 main street' (ii) Find out staff whose salary is larger than the salary of each member of staff at branch B3.
(i) Select Fname, Lname from STAFF, BRANCH where STAFF.bno = BRANCH.bno and street = ‘163 main street'(ii) Select Fname, Lname from STAFF where salary > ( select max (salary) from Staff where bno='B3'
Describe Physical Data independence ? Physical Data Independence - It is capacity to modify the internal schema without having to change conceptual schema. Therefore, the exter
What do you understand by transitive dependencies? Define with an example any two problems that can take place in the database if transitive dependencies are available in the datab
Explain the dependency relationship of object oriented A dependency is a relationship which states that a change in specification of one thing can affect another thing, but n
growing phase and shrinking phase are disjoint, why ?
Define database management system? Database management system (DBMS) is a set of interrelated data and a combination of programs to access those data.
I am doing research in this area, especially in sime join and join efficacy when several relations have been queried. Relations located in different sites. I need something like n
What is the use of integrity constraints? Integrity constraints make sure that changes made to the database by authorized users do not result in a loss of data consistency. The
What are the Overlapping elements Overlapping elements can be found by scanning all the elements in front of deleted element in priority list for the sheet and comparing them
How does Oracle act as ODBC and give examples of front end uses with ODBC? ODBC achieve portability at the level of the executable by introducing an extra level of indirection.
Change the city of First Bank Corporation to ‘New Delhi' UPDATE COMPANY SET CITY = ‘New Delhi' WHERE COMPANY_NAME = ‘First Bank Corporation';
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