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In this instance, dirty reads are disallowed, while nonrepeatable reads and phantom reads are allowed.
Which of the following disallows both dirty reads and nonrepeatable reads, but allows phantom reads?
Which of the following allows dirty reads, nonrepeatable reads and phantom reads to occur?
Four engineers, designated as CE, SE, EE and AE, read a certain number of newspapers early in the morning. One of them reads four newspapers, another reads three newspapers, the third reads two newspapers while the fourth one reads one newspaper. Below are some additional facts regarding the names of these officers. a) N is not the EE b) H is the AE c) N is not the CE and he reads more number of newspapers than L d) The one who is the CE reads more number of newspapers than L e) The person who is the SE reads the maximum number of newspapers f) B does not read two newspapers Which of the following statements is necessarily true?
Consider the following partial Schedule S involving two transactions T1 and T2. Only the read and the write operations have been shown. The read operation on data item P is denoted by read(P) and the write operation on data item P is denoted by write(P) Time Instance Transaction-id T1 T2 1 read(A)   2 write(A)   3   read(C) 4   write(C) 5   read(B) 6   write(B) 7   read(A) 8   Commit 9 read(B)     Schedule S   Suppose that the transaction T1 fails immediately after time instance 9. Which one of the following statements is correct?
In Bengaluru, only two newspapers The Hindu and The Times of India are published. It is known that 25% of the city population reads The Hindu and 20% reads The Times of India while 8% reads both the newspapers. It is also known that 30% of those who read The Hindu but not The Times of India look into advertisement and 40% of those who read The Times of India but not The Hindu look into advertisement while 50% of those who read both the newspapers look into advertisements. What is the percentage of the population who read an advertisement?
Two newspapers A and B are published in a city. It is known that 25% of the city population reads A and 20% reads B while 8% reads both A and B. Further, 30% of those who read A but not B look into advertisements and 40% of those who read B but not A also look into advertisements, while 50% of those who read both A and B look into advertisements. Then the percentage of the population who look into advertisements is:
Aayu, Jayu, Miyu and Keya all have different taste in literature. One reads novels, one reads poetry, one reads science fictions and one reads stories. Using following information select the type of literature enjoyed by Miyu. The novel fan has asked by Jayu to help her to collect data for Miyu. Miyu and Jayu are working on the project along with the person who enjoys science fictions. Both Keya and fan of novels are in the same class as the person who enjoys story reading. Miyu and Anu are not in the same class.
Consider the following schedule S of transactions T1, T2, T3, T4: T1 T2 T3 T4   Reads(X)         Writes(X) Commit   Writes(X)  Commit         Writes(Y) Reads(Z) Commit           Reads(X) Reads(Y) Commit   Which one of the following statements is CORRECT?
The following questions are based on the information given below: An advertising agency finds that, of its 170 clients, 115 read Indian Express, 110 read The Hindu and 130 read Times of India. Also 85 read Indian Express and Times of India, 75 read Indian Express and The Hindu, 95 read The Hindu and Times of India and 70 read all the three. How many read Indian Express and Times of India but not The Hindu?