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Rules Of Data Normalisation Let us now summarise Normalisation with the help of various clean rules. The following are the necessary rules for the Normalisation process: 1.
An entity type usually has an attribute whose values are distinct for every individual entity in the collection. Such an attribute is known as a key attribute and its values can be
What is DAG? The class-subclass relationship is shown by a directed acyclic graph.eg: employees can be temporary or permanent. We might be create subclasses temporary \and perm
What are the storage types? The storage types are: a) Volatile storage b) Nonvolatile storage
Define Aggregate functions and what aggregate functions supported by the MySQL To calculate a summary value from a set of individual values and uses one of the functions known
State about the Tables- DBMS Data is stored in columns and rows (much like a spreadsheet -main difference is how data is organised). Every row in a table is known as a record
What is object identity? An object retains its identity even if some or all the values of variables or explanations of methods change overtime.
What is magnetic disks?explain it? Magnetic disk provides the bulk of secondary storage of modern computer system. The disk capacity is growing at over 50% per year. But the st
In this practical assignment, we will run through a complete database application development cycle, starting with the schema design, from an initial data import to database applic
You are to write a property management database program that allows a real estate agent to view, add, search, and save property listings. The program is to do the following: 1.
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