Customer ID Gap Detector - Coding problem | OneNoughtOne
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SQL Practice: Queries to Analytics
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SQL foundations
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SQL Overview
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Data Definition Language (DDL)
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SQL Data Types
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Filtering, ordering and expressions
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Joins and relational queries
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Aggregation and business metrics
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Text and data quality
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Dates, intervals and time series
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Windows, ranking and sequences
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Recursive and graph queries
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Catalog Products with Isolated Three-Digit Blocks
Word-Start Case Normalization with Space Preservation
Customer ID Gap Detector
February Posting Burst Detector
Order Log Forward Fill for Missing Drink Labels
Workforce Chain to Company Head
Annual Product Sales by Calendar Year
Circular Secret Santa Chain Ledger
Customers With Strict Annual Purchase Growth
Executive Reporting Depth and Compensation Delta
February Hashtag Trend Leaderboard
Monthly Driver Capacity and Completed Trip Totals
Segment-Wise Content Case Normalization
Task Execution Gap Detector
Visit Transaction Frequency Distribution
Apply it: reliable analytical exports
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Course overview & roadmap
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