Fixing the "String or Binary Data Would Be Truncated" Error in EF Core

📰 Dev.to · Birupakhya Dash

Learn to fix the 'String or Binary Data Would Be Truncated' error in EF Core by adjusting database column lengths and configuring EF Core settings

intermediate Published 18 Mar 2026
Action Steps
  1. Check database column lengths to ensure they match the data being inserted
  2. Configure EF Core to throw an exception when data truncation occurs
  3. Use the 'OnModelCreating' method to specify column lengths
  4. Apply migrations to update the database schema
  5. Test the application to verify the error is resolved
Who Needs to Know This

Developers working with EF Core and database operations will benefit from this solution to avoid data truncation issues

Key Insight

💡 Adjusting database column lengths and configuring EF Core settings can prevent data truncation errors

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🚨 Fix 'String or Binary Data Would Be Truncated' error in EF Core by adjusting column lengths and configuring settings 💻

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