Posts in: Databases
Isolation Levels and Locking in MySQL
Control how transactions interact using isolation levels. Understand shared/exclusive locks and prevent dirty reads.
Read More →Understanding Primary and Foreign Keys
Ensure data integrity using PRIMARY and FOREIGN KEY constraints.
Read More →Working with NOT NULL, UNIQUE, and DEFAULT
Apply constraints on columns to control how data is inserted or validated.
Read More →CHECK Constraint in MySQL
Use CHECK to enforce specific rules on data. Supported in MySQL 8+.
Read More →Using EXPLAIN for Query Optimization
EXPLAIN helps you understand how MySQL executes queries so you can optimize performance.
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