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PYSPARK ACADEMY โ€ข MODULE 28

Deduplication

Perform exact distinct deduplication, dropDuplicates on business keys, window row_number() latest state selection, and watermarked stream deduplication.

Advanced๐Ÿ“š 10 Lessonsโญ 0 / 8450 XPโณ In Progress
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CHALLENGE CURRICULUM

Module Lessons

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LESSON 221

๐Ÿ”“ Exact Full-Row Deduplication

โฑ 3 Mins โ€ข โญ 800 XP โ€ข Advanced

LESSON 222

๐Ÿ”’ Business Key Deduplication with dropDuplicates()

โฑ 3 Mins โ€ข โญ 810 XP โ€ข Advanced

LESSON 223

๐Ÿ”’ Latest Record Deduplication with row_number()

โฑ 3 Mins โ€ข โญ 820 XP โ€ข Advanced

LESSON 224

๐Ÿ”’ Highest Priority Deduplication

โฑ 3 Mins โ€ข โญ 830 XP โ€ข Advanced

LESSON 225

๐Ÿ”’ Duplicate Identification & Audit Log Extraction

โฑ 3 Mins โ€ข โญ 840 XP โ€ข Advanced

LESSON 226

๐Ÿ”’ Handling Late-Arriving Duplicates via Watermarking

โฑ 3 Mins โ€ข โญ 850 XP โ€ข Advanced

LESSON 227

๐Ÿ”’ Incremental Deduplication against Existing Target Table

โฑ 3 Mins โ€ข โญ 860 XP โ€ข Advanced

LESSON 228

๐Ÿ”’ Tie-Breaking with Compound Window Ordering

โฑ 3 Mins โ€ข โญ 870 XP โ€ข Advanced

LESSON 229

๐Ÿ”’ Deduplicating Nested Struct Sub-Records

โฑ 3 Mins โ€ข โญ 880 XP โ€ข Advanced

LESSON 230

๐Ÿ”’ Production CDC Deduplication Pipeline

โฑ 3 Mins โ€ข โญ 890 XP โ€ข Advanced