Cryptocurrency Q&A
When not to use indexes?
When not to use indexes?
Emanuele
Tue Oct 08 2024
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7 answers
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Can you elaborate on scenarios where it might not be advisable to utilize indexes in the world of cryptocurrency and finance? Are there particular market conditions, investment strategies, or specific types of assets where relying on indexes could potentially lead to suboptimal outcomes? Additionally, how can investors ensure they are making informed decisions by understanding when to forgo index-based approaches and consider alternative methods for navigating the volatile and ever-changing landscape of digital currencies and financial markets?
7 answers
Margherita
Thu Oct 10 2024
Another situation where indexes should be carefully considered is when they are used on columns that frequently return a high percentage of data rows when queried. In such cases, the database optimizer may determine that a full table scan is more efficient than using the index.
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GwanghwamunPride
Thu Oct 10 2024
For example, if a column contains a low number of unique values or if the WHERE clause conditions are such that a significant portion of the table's rows are expected to be returned, an index on that column may not be beneficial.
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BusanBeautyBloomingStar
Thu Oct 10 2024
Additionally, tables that undergo frequent, large batch update jobs can also be problematic for indexing. These operations can lead to a significant amount of index fragmentation, which can negatively impact query performance.
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KimonoElegance
Thu Oct 10 2024
Indexes are a valuable tool in optimizing database performance, but they should not be blindly applied to all tables and columns. One scenario where indexes should be avoided is when dealing with small tables.
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CosmicDreamWhisper
Thu Oct 10 2024
Small tables often have a limited number of rows, making the overhead of maintaining an index disproportionate to the potential benefits it may provide. Indexes require additional storage space and can slow down write operations such as INSERT, UPDATE, and DELETE.
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