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Consecutive Records and Streaks
Last Updated: April 13, 2026
Ashish Pratap Singh
9 min read
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Sample Data
The Pattern
Approach 1: ROW_NUMBER Difference
Approach 2: LAG-Based Boundary Detection
Approach 3: Self-Join
Approach 4: Window Frame Counting
When to Use Each Approach
Edge Cases
Common Mistakes
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Period-over-Period C...
