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How Can I Prevent Duplicate Inserts Based on Two Columns Using SQL?

Susan Sarandon
Susan SarandonOriginal
2024-12-31 17:47:10722browse

How Can I Prevent Duplicate Inserts Based on Two Columns Using SQL?

Preventing Duplicate Inserts with "INSERT VALUES WHERE NOT EXISTS"

In database management, ensuring data integrity is crucial, especially when inserting new records. This question explores how to prevent duplicate entries based on two columns in an existing data table.

The initial query:

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