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What is the use of sub queries? A sub query is a select-from-where expression that is nested with in another query. A common use of sub queries is to do tests for set membershi
differences between a classified catalog and a dictionary catalog
Which data manipulation command combines the records from one or more tables ? JOIN data manipulation command combines the records from one or more tables.
Which language has presently become the defacto standard for interfacing application programs along with relational database system? The language which has recently become the
#ques Define a job scheduling strategy that will meet business requirement of reporting availability by 6am CST for the following cubes? Show the job scheduling dependencies in a p
Briefly explain the state diagram by taking one example. State Diagram - An object can be given a sequence of input instructions. The state of the object can vary depending u
Define Assertions in SQL a. An assertion is a predicate that is expressing a condition we wish the database to always satisfy. b. Domain constraints, functional dependency
Which is another name for weak entity? Child is another name of weak entity.
Explain controlled redundancy? Controlled redundancy : The replication of data within the data warehouse for the purposes of improved data access or understand ability.
explain three types of internet risks to the consummers whent he business system is data dependent. how can we minimise these risks
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