PYSPARK ACADEMY • MODULE 27Data Quality
Enforce multi-column null checks, regex pattern validation, range boundaries, referential integrity via semi-joins, and DLQ quarantine tables.
Advanced📚 10 Lessons⭐ 0 / 8450 XP⏳ In Progress
0 / 10 Lessons Completed (0%) LESSON 211🔓 Multi-Column Null Validation
⏱ 3 Mins • ⭐ 800 XP • Advanced
LESSON 212🔒 Duplicate Record Detection & Flagging
⏱ 3 Mins • ⭐ 810 XP • Advanced
LESSON 213🔒 Range & Threshold Boundary Validation
⏱ 3 Mins • ⭐ 820 XP • Advanced
LESSON 214🔒 Format Validation via Regular Expressions
⏱ 3 Mins • ⭐ 830 XP • Advanced
LESSON 215🔒 Schema Validation & Cast Safety
⏱ 3 Mins • ⭐ 840 XP • Advanced
LESSON 216🔒 Data Quality Flag Matrix
⏱ 3 Mins • ⭐ 850 XP • Advanced
LESSON 217🔒 Quarantine Routing with Error Reasons
⏱ 3 Mins • ⭐ 860 XP • Advanced
LESSON 218🔒 Splitting Clean and Invalid Datasets
⏱ 3 Mins • ⭐ 870 XP • Advanced
LESSON 219🔒 Referential Integrity Validation via Semi-Join
⏱ 3 Mins • ⭐ 880 XP • Advanced
LESSON 220🔒 Production Data Quality Pipeline
⏱ 3 Mins • ⭐ 890 XP • Advanced