r1(x) r2(y) w1(x) commit1 r1(x) w2(x) commit2 This schedule is serializable, but would not be allowed at SNAPSHOT isolation. At SNAPSHOT, T2’s read of x would give the value before T1 wrote it, and then T2 would not be allowed to commit because T1 was the first committer that wrote x.
What will be an ideal response?
READ UNCOMMITTED, because no other transaction can change the data.
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If you can make more than one choice from a group of radio buttons, what is wrong with your code?
A. The id attributes are not identical. B. The name attributes are not identical. C. The name attributes are identical. D. none of the above
The stream manipulator ____ sets the floating-point precision to n places.
a. setprecision(n) b. setw(n) c. setfill(‘x’) d. showbase
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In the above code, two strings are evaluated using the equivalency operator. Why can this be a problem, and what other methods are offered by Java for working with characters and strings?
What will be an ideal response?
____________________ is the fixed-length result of a one-way hash of the contents in the message, similar to a cryptographic checksum or cyclic redundancy check (CRC).
Fill in the blank(s) with the appropriate word(s).