<ul><li>Using SAFE_CAST in BigQuery helps to convert data types safely by replacing conversion errors with NULL instead of causing query failures.</li><li>It is useful for handling invalid data formats, data cleaning, and working with external data sources with unknown formats.</li><li>SAFE_CAST function syntax: SAFE_CAST(expression AS target_data_type).</li><li>Comparison with CAST: SAFE_CAST returns NULL if conversion fails, whereas CAST throws an error.</li></ul>

SAFE_CAST in BigQuery to perform Error-Free Data Conversion

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