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Consider the entity type dependent related to employee entity, which is used to keep track of the dependents of every employee. The attributes of dependents are: name, sex, birth d
Write an sql statement to find what is the percentage of home policies which are from the state of Arizona out of all Home policies by Policy Value.
does tables are called relations
explain concept of decomposition?
Example: Consider the following relations: ROLLNO NAME ADDRESS COURSE_ID 100 Ka
What are called index-sequential files? The files that are ordered sequentially with a primary index on the search key are known as index-sequential files
What is meant by the degree of relationship set? The degree of relationship type is the number of participating entity types.
What are the advantages of Logical Databases? It offers a simple-to-use selection screens. You can change the pre-generated selection screen to your needs. It offers check f
Ancestry database records information about family trees . Following information is recorded about each person: FIRSTNAME first name SURNAME surname MNAME maiden name (if
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