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Course Content
Part 1. Advanced Retrieval Patterns
Part 2. Advanced Filtering & Logic
EXISTS
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ANY / ALL
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CASE (Advanced Patterns)
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COALESCE / IFNULL (Applied)
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CASE with Aggregations — Conditional Counting and Summarizing
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NULL-Safe Filtering — IS NULL and IS NOT NULL
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Part 3. Data Cleaning with SQL
TRIM, UPPER, LOWER
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CAST / CONVERT
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Handling Messy Strings
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Date functions (DATEADD, DATEDIFF, EXTRACT)
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NULL handling and imputation (COALESCE, default values)
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Duplicate detection and removal (DISTINCT, GROUP BY, ROW_NUMBER)
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Course Includes:
- Price:$15.99
Lessons:17- Certifications:Yes