Databases
🔍 Advanced filtering
Combine conditions with AND/OR/NOT, use IN, BETWEEN, LIKE and IS NULL, and limit results with DISTINCT and LIMIT/OFFSET.
What you'll learn
- Combine conditions with
AND,ORandNOT, controlling precedence with parentheses - Filter by lists with
IN, by ranges withBETWEENand by text patterns withLIKE - Detect null values with
IS NULL/IS NOT NULL - Remove duplicates with
DISTINCTand paginate results withLIMITandOFFSET
Lessons
Logical and comparison operatorsCombine conditions with AND, OR and NOT, and control precedence with parentheses. IN, BETWEEN, LIKE and IS NULLFilter by lists of values, by ranges, by text patterns and by null values. DISTINCT and LIMIT / OFFSETRemove duplicates with DISTINCT and limit or paginate results with LIMIT and OFFSET.Practice this module in the app
DevPath is a hands-on course: you read the theory here; in the app you put it into practice with exercises that really run, offline.
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