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In which relational modes, cardinality is termed?
Answer : Cardinality is termed in a number of tuples relational modes.
Load sample data into the database tables design and test queries to return the following information • All rows and columns for employees • All rows and columns for customers •
ALTER TABLE Command : This command is used for variation of existing structure of the table in the given situation: When a new column is to be added to the table structure.
brief history,definition,current trends and future trends if any of data fragmentation
File Organisation And Its Types Just as arrays, trees, lists and other data structures are used to execute data Organisation in main memory, a number of planning's are used to
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An example of a weak entity is Staff because the availabilityID cannot be uniquely identified unless it is used in conjunction with the foreign key known as availabilityID in the A
Describe the various types of Online Analytical Processing (OLAP) tools and briefly discuss how the support common analytical operations.
A database for the Service and Maintenance (SM) section of a Computer sales and service Company has to be developed. SM gives after sales service to customers. SM branch has a numb
Define Query by Example QBE is a query language relies upon domain calculus and has two dimensional syntax. The queries are written in the horizontal and vertical dimensions of
What is 2NF? A relation schema R is in 2NF if it is in 1NF and every non-prime attribute A in R is fully functionally dependent on primary key.
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