<ul><li>Understanding how to combine WHERE and HAVING clauses effectively is crucial for optimizing SQL queries.</li><li>The WHERE clause is used to filter records before any grouping or aggregation takes place.</li><li>The HAVING clause is used to filter data after the aggregation process.</li><li>When writing complex SQL queries, it is important to combine both WHERE and HAVING clauses for optimal results.</li></ul>

Understanding Combining WHERE and HAVING Clauses: Advanced Filtering Techniques

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