the answer is 5,000 hours.
I recommend you post these kind of questions in the mathematics section
Answer:
answer is "is there an early pay discount"
Explanation:
Answer:
D) a multivalued attribute
Explanation:
A multivalued attribute can have more than one value associated with the entity key.
C: pie chart is the answer to it
Answer:
c. This would reduce the number of tuples to involve in the join resulting in a more efficient query.
Explanation:
SQL or structured query language is a database querying language used to communicate or interact with databases. A database query could be as simple as returning all the columns from a database table to complex like joining several query results which in turn forms an algebra expression.
Every query statement or expression is executed with time, execution time needs to be minimized for efficiency, so, a well-arranged and reduced joining in the query improves the efficiency of the query.
