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Express the subsequent query in SQL assumes which the data is stored within EMPLOYEE table with relevant fields
(i) Display name, job, salary, and hire date of employee who are hired between May 10, 1975 and December 20, 1980. Order the query within ascending order of hire date. (ii) Display name and hire date of employee who are employed after employee ‘RAGHAV'.
(i) Select name, job, salary, hire date from employee where hire date between ‘May-10-1975' and ‘Dec-20-1980' order by hire date; (ii) Select name, hire date from employee Where hire date> (select hire date from employee where name= ‘Raghav');
With the linear commit protocol, sites are connected in a chain, and the subtransaction at the left-hand end of the chain initiates the protocol. Propose a crash recovery protocol
While sorting, if the main storage available is not enough, the system writes data to an external help file. The SAP profile parameter, which determines DIR_SORTTMP
atient(PNumber, Name, NHS_no, Amount_due, DNO, Doctor, Medical_Treatment), relation of schema Staff(StaffNum, Name, DNO, Task) and relation of schema Dept(DNO, Name, Location, Dire
What do you mean through integrity constraints? Integrity Constraints -An integrity constraint is a condition specified on a database schema and restricts the data in which
Differance between Unordered and ordered file ? Unordered file do no has any sequence although ordered file has arranged in a few sequence and data are assigned in ordered form
#question. Draw a picture of a moving source and the waves surrounding it according to what you observed in this experiment. How does the spacing of the wave-fronts in front of the
What is the function of IO/M signal in the 8085? It is a status signal. It is used to differentiate among memory locations and I/O operations. When this signal is low (IO/M = 0
Creating views with Read only option : In the view definition this option is used to make sure that no DML operations can be done on the view.
Explain the rules for creating a labelled precedence graph for testing view serializability. Ans: A schedule S is view serializable if it is view equivalent to a ser
What is Outer join? They can be employed while we want to keep all the tuples in R, or all those in S or all those in both relations in the result of the JOIN in spite of of w
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