In big table, data is accessed by a)timestamp b)row key c)column key d)none of the above
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Explanation:
From Big Data through Big Table to Hadoop ... In a key-value database, access to aggregation can only be obtained ... four keys: row key, column family name, column name, time ...
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In big table, data is accessed by Row key. SO, option (b) is the correct choice.
- Bigtable is a high performing, very much compressed in size and operation, proprietary data storage system which is mainly built on Lock services, Google File System, Chubby Lock Service, SSTable and a few other Google technologies.
- From Bigdata to Hadoop, the access to aggregation can only be obtained by four keys, such as Row key, column family name, time and column name.
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