Unit: bytes. EXPLAIN ANALYZE Syntax You can execute the following EXPLAIN ANALYZE statement to query the actual execution plan of an SQL statement and the execution duration of each operator. This helps you diagnose SQL performance issues. EXPLAIN ANALYZE <sql>; Example In this example, a ...
Explain the underlying reasoning for a firm to adopt intertemporal price discrimination as compared to peak-load pricing. Provide an example of each. Explain what AD curve represents and what are five factors that cause the AD curve to shift?
The Oracle Optimizer is a cost-based optimizer. The execution plan selected for a SQL statement is just one of the many alternative execution plans considered by the Optimizer. The Optimizer selects the execution plan with the lowest cost, where cost represents the estimated resource usage for ...
It can't easily display letters, though some scientific calculators (more advanced electronic calculators with lots of built into mathematical and scientific formulae) do have a go.Photo: Look closely at the green digits on this display and you can see that each one is made by lighting up ...
represents the variable cost of the item and 80% of the sales dollar is margin. Just as each product or service has its own contribution margin on a per unit basis, each has a unique contribution margin ratio. Although this process is extremely useful for analyzing the profitability of a ...
The term m2Sp reflects increases in s when a potential species-pool effect (Sp; s is the actual effect of the species pool) continues to act on the target community. m2 represents the total availability of resources, and a high availability may increase the establishment rates of species ...
Give the general formula for a mixed cost. Which term represents the variable cost and the fixed cost? Explain the concepts of fixed cost versus variable cost. Also contrast the concept of fixed cost to sunk cost. Explain what "interest" is (in the financial sense). Briefly...
The double-struck font is easier to write on a blackboard than a proper bold letter and often represents a set, such as ℝ for the set of real numbers or ℂ for the set of complex numbers. 𝔻 can represent the unit disk in the complex plane, the set of decimal fractions, or ...
Below the above options there is line with four persons above it, defining a scale of athleticism, the default second option being the drawing of "you" which represents Decent form (i.e. a normal person). The first on the scale is Black Hat, who thinks moving things is for suckers, th...
Sc represents vertebra length (19.8 mm for this individual), with S1 and S7 delimiting lengths of individual increments. Top and bottom right-hand panels depict anterior and posterior cones of the same vertebra from different angles, respectively Full size image Similar increment patterns to those ...