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Define null values. In some cases a certain entity may not have an applicable value for an attribute or if we do not know the value of an attribute for a certain entity. In the
Describe the various types of Online Analytical Processing (OLAP) tools and briefly discuss how the support common analytical operations.
Define access time. Access time is the time from when a read or write request is issued to when data transfer starts.
What is candidate key? Candidate Key - A candidate key of an entity set is a minimal superkey, which uniquely identifies each row in the relation.
Explain the paths in the association network We can analyze use of paths in the association network as given below: Calculate each operation Find associations whic
Create student database and retrieve course name taught by king? STUDENT (name, student#, class, major) COURSE (course name, course#, credit hours, department) SECTION (secti
What is the full form of DDL? DDL is stand for Data Definition Language.
Hi is anyone well versed in accounting information systems available now to help me work through an important assignment due tomorrow at noon?
how can apply joins on table
Describe substring comparison in SQL. For the relation Person (name, address), write a SQL query that retrieves the names of people whose name starts along with ‘A' and address co
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