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What is conceptual schema?
The schemas at the view level are known as subschema that describe dissimilar views of the database.
XYZ is a large chain of home entertainment rental over 100 stores distributed over all states in Australia. XYZ lends entertainment products such as movies, TV shows and games on v
Question: (a) What is ODBC and what is its function? (b) What is Web application server, and how does it work from a database perspective? (c) What does e-commerce mean
Define shadow paging. An alternative to log-based crash recovery method is shadow paging. This technique requires fewer disk accesses than do the log-based methods.
define anomalies and different types of anomalies with example
Mention the various user privileges All privileges directly granted to the user or role. All privileges granted to roles that have been granted to the user or role.
1. A company wants a report containing a breakdown of payroll by department. Input, which should be stored in 3 parallel arrays, includes each employee's department number, hourly
Emergence of Client Server Architecture Some of the pioneering work that was completed by some of the relational database vendors permitted the computing to be distributed on m
Define query optimization. Query optimization refers to the process of search the lowest -cost method of evaluating a given query.
What does the extract statement do in extract datasets? The data is written to virtual memory by extract commands.
Which data type can store unstructured data? Raw data type can store unstructured data.
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