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A dense index is a type of index where there is a one-to-one correspondence between index entries and actual data entries in the indexed column. In other words, for every key value in the data file, there is a corresponding entry in the index. Key characteristics of a dense index include: • Complete Coverage: Every value of the indexed field in the data file is represented in the index. This means that if a value appears multiple times in the data file, there will be an index entry for each occurrence. • Direct Access: Since each value in the data file has an associated index entry, it allows for direct access to the data records. This can make searches and retrievals very efficient because the index provides a quick way to locate any specific record.
Six letters A, T, M, P, S and R are written on different faces of a dice. Two positions of this dice are shown in the figure below. Find the letter on t...
Which two signs should be interchanged to make the given equation correct?
36× 15 + 784 – 16 ÷ (45× 12) = 49
Statements:
No toy is beautiful.
Some beautiful are actresses.
All actresses are rich.
Conclusions:
I. No toy is ...
Three of the following words are alike in some manner and hence form a group. Which word does NOT belong to that group? (The words must be considered a...
Which of the following terms will replace the question mark (?) in the given series?
DCZ, FFY, ?, JLW, LOV
18 is related to 54 following a certain logic. Following the same logic, 21 is related to 63. To which of the following is 72 related to, following the ...
Seven people A, B, C, D, E, F and G went to watch a movie. A is the only son of B. B is the mother of C. D is the grandmother of A. E is the sister-in-...
Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.
HCE, MHJ, ?, TOQ, VQS, WRT
Select the number from among the given options that can replace the question mark (?) in the following series.
63, 78, 108, 153, ?
Seven people, A, B, C, D, E, F and G, are sitting in a straight row, facing north. Only 2 people sit to the left of E. G is an immediate neighbour of E....