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Illustrate the term- Abstracting Out Common Behaviour Inheritance is not every time recognised during analysis phase of development, thus it is necessary to re-evaluate object
What is a primary index? A primary index is an index whose search key also explains the sequential order of the file.
various techniques of hashing?
Relationship between Security and Integrity: Database security usually refers to access, while database integrity refers to avoidance of accidental loss of consistency. But usually
Explain heap file with advantages? Heap File is an unordered set or a group of records, stored on a set of pages. This class gives basic support for inserting, updating, select
Describe relational model? Structure of relational data base Basic structure Database schema Keys Schema diagram Query languages
Which data type can store unstructured data? Raw data type can store unstructured data.
What are the Issues when Selecting a Database Issues when Selecting a Database Storage space requirement: A database requires about triple storage space of the actua
Consider a systems development project with the following data Activity Duration (weeks) Precedence Relationship 1. Software design
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
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