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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• A count of sales orders• A list of customers who have placed orders• Sales order information including individual items
Prepare a write-up in Microsoft word to describe how busicorp might benefit in the future from data warehousing and data mining include the types of data you would transfer into the warehouse and what aspects of the business might benefit from the information that could be mined from the warehouse.
Differentiate between Primary and secondary storage? Primary and secondary storage - Primary storage device stores the data temporarily. Primary storage is commonly used thro
What is OLTP (Online Transaction Processing)? In OLTP - online transaction processing systems relational database design use the discipline of data modeling and generally follo
What is known as sequential file organization? In the sequential file organization, the records are kept in sequential order, according to the value of a "search key" of every
What will be create when a primary key if combined with a foreign key? A primary key if combined with a foreign key it creates Parent-Child relationship between the tables that
What is B-Tree? A B-tree eliminates the redundant storage of search-key values .It permits search key values to appear only once.
Define single valued and multivalued attributes. Single valued attributes: attributes with a single value for a particular entity are known as single valued attributes. Mult
Database Recovery And Security Introduction In this part we will introduce two main issues relating to database management systems. A computer system suffers from dissi
When It is better to use files than a DBMS? It is better to use files than a DBMS when Multiple users wish to access the data.
An instance of relational schema R (A, B, C) has distinct values of A including NULL values. then A is a candidate key or not? If relational schema R (A, B, C) has distinct val
Can a domain, assigned to a data element be changed? Yes. We can do so by just overwriting the entry in the field domain.
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