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Fully equivalent means that the optimized query results are always the same as the original query.
Anal Stage
A phase in Freud's psychosexual development theory, occurring from ages 18 months to three years, when a child's focus is on controlling bladder and bowel movements.
Obstinate
Showing stubbornness and refusal to change one's opinion or chosen course of action, despite attempts to persuade one to do so.
Stingy
Describing a person or behavior characterized by an unwillingness to spend money or use resources; being miserly or parsimonious.
Personal Unconscious
According to Carl Jung, the layer of the unconscious that houses material which is not within one's conscious awareness but is personal to the individual.
Q1: How can queries be written to perform
Q12: The _ statement in SQL combines rows
Q19: A(n)_ subquery is a subquery that executes
Q21: Facts can be computed or derived at
Q22: Most multiuser _ automatically initiate and enforce
Q22: A characteristic of decision support data is
Q22: Midlands Insurance has 100 policyholders. It expects
Q30: The _ is an advanced data definition
Q48: All transactions must display _.<br>A) atomicity, consistency,
Q100: In a typical star schema,each dimension record