SQL Index Usage Patterns and Performance Optimization Techniques
Full Value Matching
When all columns in a composite index are specified with exact values, the index can be fully utilized.
CREATE TABLE vendor_data (
vendor_id VARCHAR(100) PRIMARY KEY,
vendor_name VARCHAR(100),
vendor_alias VARCHAR(50),
vendor_password VARCHAR(60),
vendor_status VARCHAR(1),
vendor_location VARCHAR(100) ...
Posted on Sun, 31 May 2026 19:52:24 +0000 by Masterchief07
MySQL Index Usage Analysis Across Different Query Scenarios
SQL Statement Performance Anlaysis Methods
Execution Frequency Inspection
View execution counts for different SQL statement types:
SHOW GLOBAL STATUS LIKE 'COM_______';
Slow Query Log Configuration
Records queries exceeding a specified duration. Enable via MySQL configuration file (e.g., .cnf):
slow_query_log = 1
long_query_time = 2 # Log que ...
Posted on Sun, 24 May 2026 16:41:13 +0000 by bobbyM