Optimize MySQL OR Conditions: A UNION Rewrite Guide
MySQL OR Condition Optimization: A Practical Guide to Performance Improvement with UNION Rewrite
Rebooter.S
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8 min
Tag: Database Optimization
25 posts
MySQL COUNT Scalar Subquery Optimization: The Complete Guide
This article demonstrates how optimizing COUNT subqueries to IN clauses boosts MySQL performance by 99%, with detailed examples and execution plan analysis.
Rebooter.S
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5 min
Lesson 37 of the SQL Optimization Course: Hash Partitioning
Explore MySQL hash partitioning for efficient equality queries, learn optimization techniques, and understand LINEAR HASH trade-offs.
ytt
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8 min
10 Most Common SQL Interview Questions and How to Answer Them
Prepare for your SQL Interview with the top 10 questions and expert answers covering joins, constraints, normalization, and query optimization.
SQLFlash
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20 min
MySQL 9.x vs PostgreSQL 17: Which is Better?
DBA-focused comparison of MySQL 9.x and PostgreSQL 17 analyzing data types, storage engines, MVCC concurrency, and extensibility for optimal database selection.
SQLFlash
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10 min
Lesson 36 of the SQL Optimization Course: Time-Based Partitioning Case Study
Time-based partitioning in MySQL optimizes query performance for large datasets by enabling partition pruning and automated data lifecycle management.
ytt
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7 min
What is DuckDB？
DuckDB accelerates analytical workflows through its in-process OLAP engine, offering Python/R integration and efficient data processing for DBAs and data teams.
SQLFlash
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11 min
SQLFlash vs. ChatGPT for SQL: Which is Better at SQL Optimization?
Discover how AI revolutionizes SQL optimization with automated query rewriting, intelligent indexing, and predictive performance analysis. Explore AI-powered tools like SQLFlash that reduce manual efforts by 90%, accelerate database performance, and enable proactive bottleneck resolution.
SQLFlash
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12 min
Lesson 35 of the SQL Optimization Course: Optimizing MySQL Partitioned Tables for Time Series Queries
Learn advanced techniques to enhance query performance on MySQL time-based partitioned tables. Master partition pruning, SQL rewriting, and partition hints for large-scale data optimization.
ytt
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3 min
HAVING Condition Pushdown: Optimizing Query Performance
Learn how HAVING condition pushdown optimizes SQL queries by 17% faster execution and 25% reduced rows scanned through automated index utilization and execution plan analysis.
Rebooter.S
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5 min