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Consider data...

Question

Consider database has 3 files, each file has 100 pages and each page has 10 records. Mention the sequence of locking in multiple granularity locking to read records P30 to P70 of file 1.

A

IS on data base, S on file 1

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B

IS on data base, S on file 2

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C

IS on data base, X on file 1

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D

X on data base S on file 1

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Solution

The correct option is A IS on data base, S on file 1
All ancestor nodes be locked in intention shared modes and the node be locked in shared mode.

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