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as a customer service employee explain five measures you would recommend to make even a displeased students patronize the school canteen
Write a query that display ename annual salary and comm from emp table
What is a relationship called when it is maintained between two entities? A relationship is called Binary relationship when it is maintained between two entities.
explaination
How does a query tree represent a relational algebra expression? Discuss any three rules for query optimisation, giving example as to when should each rule be applied. Ans
Explain the term- Query. Queries are used to repossess and show specific records in a table. They can also be used to show specific fields of specific records, which meet the co
Explain four causes for failures in data warehouse projects
What is ICR? A. ICR (Intelligent Character Recognition) is a technology that gives scanning and imaging systems the ability to identify images of hand-printed or script charact
Define Sequence A sequence is a set of integers 1, 2, 3 that are generated in order on demand. Sequences are regularly used in databases because lots of applications require ev
I need a professional to prepare a database to collect and store basic information. The information can be basic info such as contact details etc. One requirement i have is f
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