I suspect my database is not properly indexed, which is contributing to slow query performance. I need help identifying and implementing the correct indexes.
Descripción del Problema
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10 solucionesConnection Management
Ensure applications properly close database connections when they are no longer needed.
Connection Pool Tuning
Adjust the maximum number of connections in the application's database connection pool to an appropriate level.
Resource Throttling
Configure background processes to use a limited amount of system resources to avoid impacting live operations.
Schedule Optimization
Reschedule maintenance, backups, and batch jobs to off-peak hours.
Load Balancing and Caching
Implement application-level caching or load balancing to distribute requests and reduce direct database pressure.
Application Code Review
Identify and refactor inefficient queries or code patterns that cause excessive database load.
Resource Scaling
Increase the CPU, RAM, or storage capacity of the database server or consider a more powerful instance type.
Performance Tuning
Optimize slow queries, add appropriate indexes, and tune database configuration parameters for better resource utilization.
Consider Index Types
Explore different index types (e.g., B-tree, hash, full-text) based on the nature of the queries and data.
Implement Covering Indexes
Create indexes that include all columns needed by a query to avoid table lookups.
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Preguntas Frecuentes
Preguntas comunes relacionadas con este problema y sus soluciones.
What is the typical duration of these unexpected downtimes?
Which database system are you using?
What is the approximate latency you are experiencing between data generation and its availability for decision-making?
What are the primary symptoms of inefficient data retrieval you are observing?
What is the approximate size of the dataset being migrated?
What type of data is being duplicated?
What specific areas of the application or database are experiencing the most significant performance degradation?
How frequently are your database backups performed?
What is the primary goal of the reports you are trying to generate?
What is your current database technology?
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Causas Identificadas
Missing Indexes on Frequently Queried Columns
90%Essential columns used in WHERE clauses, JOIN conditions, or ORDER BY clauses lack appropriate indexes, forcing full table scans.
Ineffective or Redundant Indexes
60%Existing indexes are not being used by the query optimizer, or multiple indexes cover the same set of columns, leading to overhead.
Suboptimal Index Design for Specific Query Types
50%Indexes are not tailored to the specific needs of the queries, such as missing indexes for LIKE queries with leading wildcards or insufficient coverage for covering indexes.
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