Mastering COALESCE in SQL: Handle NULL Values Easily
The COALESCE SQL function is a powerful tool used to handle NULL values in queries. It returns the first non-NULL value from a list of expressions, making data handling more efficient and reliable. With COALESCE, you can set default values, ensure cleaner results, and simplify conditional logic in SQL statements. This function is widely used in reporting, data analysis, and database management. Learning how to use COALESCE in SQL helps maintain data accuracy and improves query performance.
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