When entering numbers or currency into a validation rule, do not enter symbols such as commas or a dollar sign
Indicate whether the statement is true or false
TRUE
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Suppose that transactions T1 and T2 can be decomposed into the subtransactions T1 : T1,1, T1,2 and T2 : T2,1, T2,2 such that the database items accessed by T1,1 and T2,1 are disjoint from the items accessed by T1,2 and T2,2. Instead of guaranteeing that all schedules involving T1 and T2 are serializable, suppose that a concurrency control guarantees that T1,1 is always executed serializably with T2,1 and that T1,2 is always executed serializably with T2,2.
a. Will T1 always be serializable with T2? Explain. b. What minimal additional condition on the subtransactions guarantees that the effect of executing T1 concurrently with T2 is the same as a serial schedule? c. Assuming that the condition of (b) holds, what advantage does the new concurrency control have over a concurrency control that guarantees serializability?
With the overflow property, a value of ____ instructs browsers to increase the height of an element to fit the overflow content.
A. hidden B. visible C. scroll D. auto
How many frames would you need for a two-hour movie with a picture size of 1024 width by 728 height and 60 frames per second? How much disk space would this movie need if you stored every pixel’s color? Remember that each pixel would require 24 bits to store the color.
What will be an ideal response?
The term _______________ refers to mobile operating systems tracking and in many cases recording your location for an extended amount of time.
Fill in the blank(s) with the appropriate word(s).