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Q. Consider the following relational schemas: EMPLOYEE (EMPLOYEE_NAME, STREET, CITY) WORKS (EMPLOYEE_NAME, COMPANYNAME, SALARY) COMPANY (COMPANY_NAME, CITY) Specify the table definitions in SQL.
Give an expression in SQL for each of queries below: (i) Find the names of all employees who work for first Bank Corporation.
(ii) Find the names and company names of all employees sorted in ascending order of company name and descending order of employee names of that company.
(iii) Change the city of First Bank Corporation to ‘New Delhi'
Describe the importance of using sub queries in a database system
A vendor builds multiple types of tablet computers. Each hs a type identification number and a name. The key specifications for each type include amount of storage and display type.
1.modify the database by adding an additional column deleteddate to those tables that represent entities that could
Data breaches have been reported in all industries, from education to healthcare to finance. Database security did not take priority in the enterprise IT security plans until a few years ago
assume you were a newly hired it security manager at a software development company that in the past hasnt paid much
Write a memorandum to Sam Jones (CIO) and present your research findings. Your memorandum should be no longer than 500 words.
Assume you are making a database to help university keep track of its course offerings. You might have following entities in database, as they are distinct items in real life.
In order to move forward, the local university will need to develop a data model that will retain student records and perform various data extract transform and load (ETL) processes.
You need to develop new user named ASSOCDBA1 and new ROLE named JRDBA1 which can be used for assistant DBA. You wish the new role to contain DBA role that the SYSTEM user ha
Use the results of the transcripts of an interview with IT consultant. Prepare a Fully Attributed Data Model. Add the data attributes for each entity."
What is online analytical processing? How is OLAP related to databases? What is a pivot table, and how are pivot tables and OLAP related?
A distributed database management system (DDBMS) stores a logically related database over two or more physically distinct locations connected by a computer network.
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