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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');
Attributes having a one value for a particular entity. For instance, Age is a single valued attribute of a student entity. Attributes that have more than single values
Question 1 Discuss the classification of DBMS based on location of database Question 2 Explain with examples different SQL commands used for creating and deleting relations.
Question: The following relational database schema corresponds to a part of a database used by the Registry Department of a university. DEPARTMENT (d#, d-name, head-of-dept)
Define the terms 1) physical schema 2) logical schema. Physical schema: The physical schema explains the database design at the physical level, which is the lowest lev
what are information system hirarchy?
Consider the following frequency counts of some itemsets in a transaction database r : freq({A}, r) = 0.405 freq({B}, r) = 0.510 freq({C}, r) = 0.303 freq({A
What is called a query -execution engine? The query implementation engine takes a query evaluation plan, implements that plan, and returns the answers to the query.
Identification of concurrency Identification of concurrency: Dynamic model identifies concurrency. Two objects are said to be parallel (concurrent) if they can receive events a
Produce a set of relations (equivalent to the Finkelstein entity list) in third normal form (3NF) from the following un-normalised relation. You must use the Finkelstein methodolog
Differance between Open addressing and chaining for collision resolution ? In open addressing , proceeding from the occupied position specified by hash address the program che
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