Missing index: Without proper indexing in the table, data retrieval will be very slow.
Query optimization is insufficient: The query has not been optimized, resulting in the database engine being unable to efficiently execute the query operation.
Having a large amount of data: If there is a large amount of data in the table, it will take more time to retrieve data.
Uneven data distribution: Data is spread across different storage devices, leading to a significant amount of disk IO operations required when reading data.
Inadequate hardware performance: The hardware performance of the database server is insufficient, resulting in the inability to quickly process large amounts of data.
Improper database configuration: The database configuration parameters have not been properly optimized, leading to a negative impact on database performance.
Lock contention: When multiple users simultaneously access the same table, it can lead to lock contention, which may impact the speed of data retrieval.
