Intelligent Query Processing (IQP)

 

⭐ Intelligent Query Processing (IQP)

(Especially enhanced in SQL Server 2019–2025)

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🔍 What it is:

IQP is a suite of features that automatically improves the performance of your queries without changing your code.

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🚀 Why it’s the best:

• ✅ Fixes bad plans on the fly with Adaptive Joins, Memory Grant Feedback, and Parameter Sensitivity fixes.

• ✅ Great for complex, slow-running queries—IQP helps optimize execution without developer tuning.

• ✅ In SQL Server 2025, IQP is even smarter and works better with modern workloads, JSON data, and AI features.

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🧠 Simple Example:

Normally, if you write a query with a weird data shape or a bad parameter, SQL Server might guess wrong and run it slowly. IQP learns from that and adjusts future runs to be faster—all automatically.