Identify advantage and disadvantage of Sparse Index.Slower than dense index for locating the recordsOccupies less space than dense indexLow overhead during insertion and deletion
Question
Identify advantage and disadvantage of Sparse Index.Slower than dense index for locating the recordsOccupies less space than dense indexLow overhead during insertion and deletion
Solution 1
Advantages of Sparse Index:
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Space Efficiency: Sparse Indexing is more space-efficient than Dense Indexing. It does not maintain a record for every single row in the database table, but only for a range of indexing values. This significantly reduces the amount of storage space required for indexing.
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Low Overhead: Sparse Indexing has a lower overhead during insertion and deletion operations. Since it does not maintain a record for every single row, the number of index updates required during insertion and deletion operations is less. This can lead to improved performance for these operations.
Disadvantages of Sparse Index:
- Slower Retrieval: Sparse Indexing can be slower than Dense Indexing for locating records. Since it does not maintain a record for every single row, the database system may need to scan a larger number of records to find the desired data. This can lead to slower retrieval times.
In conclusion, the choice between Sparse and Dense Indexing depends on the specific requirements of your database system. If space efficiency and low overhead for insertions and deletions are more important, Sparse Indexing may be the better choice. However, if fast retrieval times are more important, Dense Indexing may be more suitable.
Solution 2
Advantages of Sparse Index:
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Space Efficiency: Sparse Indexing is more space-efficient than Dense Indexing. It does not maintain a record for every single row in the database table, instead, it keeps records for a range of values. This significantly reduces the amount of space required to store the index.
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Low Overhead: Sparse Indexing has lower overhead during insertion and deletion operations. Since it does not maintain a record for every single row, fewer index updates are required when data is inserted or deleted from the table.
Disadvantages of Sparse Index:
- Speed: Sparse Indexing is slower than Dense Indexing when it comes to locating records. This is because it may need to search through a range of values to find a specific record, rather than directly accessing the record via an index entry.
Similar Questions
A single-level ordered index where the index points to individual records rather than blocks of data is known as: *1 pointA. Dense indexB. Sparse indexC. Primary indexD. Secondary index
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