Consider a database consisting of 10 consecutive disk blocks (block 1, block 2, . . ., block
Question:
Consider a database consisting of 10 consecutive disk blocks (block 1, block 2, . . ., block 10). Show the buffer state and a possible physical ordering of the blocks after the following updates, assuming that shadow paging is used, that the buffer in main memory can hold only three blocks, and that a least recently used (LRU) strategy is used for buffer management.
Read block 3
Read block 7
Read block 5
Read block 3
Read block 1
Modify block 1
Read block 10
Modify block 5
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The initial ordering of the disk blocks is 1 2 3 4 5 6 7 8 9 10 assume that the two blocks following ...View the full answer
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