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Master PostgreSQL with Adaptive AI.
Master PostgreSQL across 27 topics - Foundations, Queries and Json, and Advanced PostgreSQL - guided by Leyaa's adaptive intelligence.
3Parts
27Topics
244Patterns
60hEst. duration
PostgreSQL Course
3 - part learning journey
Foundations
9 topics · 77 patterns
Queries and Json
9 topics · 79 patterns
Advanced PostgreSQL
9 topics · 88 patterns
✦ Course Structure
Your PostgreSQL Journey in 3 Parts
Each part builds on the last - a deliberate progression from beginner to advanced.
Part 1: Foundations
Covers PostgreSQL Fundamentals, Data Types in PostgreSQL, Table Creation and Schema Management and 6 more topics.
9Topics
77Patterns
View topics
Part 2: Queries and Json
Covers Joins in PostgreSQL, Aggregate Functions and GROUP BY, Window Functions in PostgreSQL and 6 more topics.
9Topics
79Patterns
View topics
Part 3: Advanced PostgreSQL
Covers Indexing Strategies, PL/pgSQL Fundamentals, Advanced PL/pgSQL and 6 more topics.
9Topics
88Patterns
View topics
Curriculum
Everything You'll Learn
Explore every topic and pattern in the course.
PostgreSQL
3 parts · 27 topics · 244 patternsPart 1: Foundations9 topics · 77 patterns
Beginner01
PostgreSQL Fundamentals
8 patterns
02
Data Types in PostgreSQL
10 patterns
03
Table Creation and Schema Management
9 patterns
Why schemas matter in PostgreSQLCREATE TABLE with PostgreSQL typesColumn constraints (NOT NULL, UNIQUE, CHECK)PRIMARY KEY and SERIAL behaviorDEFAULT values and expressionsGENERATED columns (stored and virtual)Schemas for namespace organizationPublic schema vs custom schemasCreating and switching schemas
04
Basic CRUD Operations
8 patterns
05
WHERE and Filtering in PostgreSQL
9 patterns
06
Sorting, Pagination, and Result Control
7 patterns
07
String Functions in PostgreSQL
9 patterns
Why PostgreSQL string functions are powerfulConcatenation with || operatorString length and position functionsSubstring and overlay functionsTRIM, LTRIM, RTRIM variationsUPPER, LOWER, INITCAPFormat function for safe formattingRegular expression functions (regexp_match, regexp_replace)String to array and array to string
08
Date and Time Functions
9 patterns
Part 2: Queries and Json9 topics · 79 patterns
Intermediate01
Joins in PostgreSQL
8 patterns
02
Aggregate Functions and GROUP BY
10 patterns
Why aggregation mattersCOUNT, SUM, AVG, MIN, MAXGROUP BY single and multiple columnsHAVING for filtering groupsFILTER clause for conditional aggregationString aggregation with STRING_AGGArray aggregation with ARRAY_AGGJSON aggregation with JSON_AGGGROUPING SETS for multiple groupingsROLLUP and CUBE for hierarchical totals
03
Window Functions in PostgreSQL
10 patterns
Why window functions are powerfulROW_NUMBER, RANK, DENSE_RANKNTILE for distributionLAG and LEAD for row comparisonFIRST_VALUE and LAST_VALUESUM, AVG, COUNT as window functionsPARTITION BY for grouping windowsWindow frame (ROWS BETWEEN, RANGE BETWEEN)Named windows with WINDOW clausePractical window function patterns
04
Common Table Expressions
8 patterns
05
Subqueries in PostgreSQL
8 patterns
06
JSON and JSONB
10 patterns
07
Full-Text Search
9 patterns
08
Views and Materialized Views
9 patterns
Part 3: Advanced PostgreSQL9 topics · 88 patterns
Advanced01
Indexing Strategies
11 patterns
Why indexing strategy mattersB-tree index (default) behaviorHash index for equalityGIN index for arrays and JSONBGiST index for geometric and textBRIN index for large sequential dataPartial indexes with WHERE clauseExpression indexesCovering indexes with INCLUDEIndex-only scans mental modelAnalyzing index usage with pg_stat
02
PL/pgSQL Fundamentals
10 patterns
03
Advanced PL/pgSQL
9 patterns
04
Triggers in PostgreSQL
10 patterns
05
Table Partitioning
10 patterns
06
Transactions and Concurrency
10 patterns
07
Roles and Security
9 patterns
08
Performance Tuning
10 patterns
Why performance tuning mattersEXPLAIN output readingEXPLAIN ANALYZE for actual executionSequential scan vs index scanBitmap index scan behaviorJoin algorithms (nested loop, hash, merge)Work_mem and effective_cache_size tuningANALYZE for statistics collectionpg_stat_statements for slow queriesCommon query optimization patterns
Why LeyaaNot just a course. A learning intelligence.
Leyaa doesn't just deliver content - it understands where you are, what you need, and how to get you there fastest.
Adaptive Diagnostics
Leyaa identifies which of the 244 patterns you've mastered and which need work - before you waste time on what you already know.
Pattern-Level Precision
Every pattern gets a verdict - Learn, Practice, or Skip - so your study time goes exactly where it counts.
Intelligent Pacing
Leyaa reads your velocity across the whole course and adapts your focus list dynamically, keeping you in the optimal learning zone.
Before & After Visibility
Every assessment creates a snapshot. Retake anytime to see exactly how much you've grown - topic by topic, pattern by pattern.
Learner Autonomy
Leyaa recommends, never restricts. Override any suggestion and explore at your own pace - the system tracks everything regardless.
Clear Learning Path
Foundations → Queries and Json → Advanced PostgreSQL - a structured journey where each part sets you up perfectly for the next.
PostgreSQL
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Start your journey today
Start your diagnostic now. Build mastery across all 27 topics in under 15 minutes.
27 Topics
244 Patterns
Personalized roadmap
