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Being a Better Developer With EXPLAIN - Louise Grandjonc
Improve database query performance and optimize your development skills with EXPLAIN, a powerful command in PostgreSQL that reveals query plans and execution times, helping you identify efficient indexes and optimize your queries.
- Using indexes to store and retrieve data efficiently in databases
- Indexing can improve query performance by reducing the time it takes to retrieve data
- Understanding query plans can help developers optimize their database queries
- EXPLAIN command in PostgreSQL can be used to analyze the query plan and execution time
- Index scans, sequential scans, and bitmap index scans are three types of scans used in PostgreSQL
- Bitmap index scans can be used to quickly locate specific rows in a table
- Understanding how the database planner and optimizer work can help developers optimize their queries
- DBAs (database administrators) often use explain plans to analyze query performance
- Indexes can be used to improve query performance by reducing the number of rows that need to be scanned
- Understanding how to read and interpret explain plans can help developers troubleshoot query performance issues
- Using explain plans can help developers identify which indexes are being used and which are not
- Indexes can be used to improve query performance by avoiding the use of sequential scans
- Using explain plans can help developers identify the most efficient way to retrieve data
- EXPLAIN commands can be used to analyze query plans for a specific table or query
- Understanding how the database planner and optimizer work can help developers optimize their queries
- Indexes can be used to improve query performance by reducing the time it takes to retrieve data
- Understanding how to read and interpret explain plans can help developers troubleshoot query performance issues