January 31, 2025 |580 Views

SQL | UPDATE with JOIN

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The SQL UPDATE with JOIN statement allows users to update records in one table using data from another table based on a matching condition. This technique is useful for synchronizing data, merging records, or updating specific columns in one table by referencing related records from another table. By using INNER JOIN or LEFT JOIN, the statement can update the target table with values from the source table while maintaining data integrity.

In the video, practical examples are provided to illustrate how SQL UPDATE with JOIN can be implemented. It covers scenarios using INNER JOIN to update matching rows and LEFT JOIN to update even unmatched rows with default values. These methods enable developers and database administrators to efficiently perform targeted updates in relational databases, improving data consistency and performance.

For more details, please go through - SQL | UPDATE with JOIN