course
Analytics SQL Path
A focused path for metrics, period analysis, cohorts, joins, grouping grain, and executive reporting.
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Who this path is for
A focused path for metrics, period analysis, cohorts, joins, grouping grain, and executive reporting.
Audience: Analysts and product operators who need reliable metrics, cohort questions, and executive-ready SQL evidence.
Prerequisites: Comfort with SELECT, WHERE, basic joins, and reading table grains.
Observable learner outcomes
The course states outcomes as observable SQL behaviors that can be checked through local attempts, hidden variants, reviews, and projects.
- Build metrics with safe aggregation, complete periods, and explicit numerator/denominator definitions.
- Explain cohort and retention queries with row grain, null behavior, and period boundaries.
- Produce project-ready reporting SQL with validation checks and caveats.
Estimated effort range
Estimated effort range: 14-22 hours. This is a planning range, not a fake guarantee; prior SQL experience, review spacing, and project depth change the total.
Cumulative reviews and project requirements are part of completion, so finishing the path means more than viewing lessons.
Ordered syllabus
The syllabus below is rendered server-side so the course remains useful before the app loads.
| Module | Topic | Activities |
|---|---|---|
| M13 | Aggregate Functions and Null Semantics | 7 |
| M14 | GROUP BY and Report Grain | 7 |
| M15 | HAVING, Conditional Aggregation, and Safe Ratios | 7 |
| M16 | Keys, Relationships, Cardinality, and Join Planning | 7 |
| M17 | INNER JOIN and Qualified Columns | 7 |
| M18 | LEFT JOIN, Missing Relationships, and Zero Counts | 7 |
| M19 | Multi-Table Joins and Fact Grain | 7 |
| M20 | Fan-Out, Pre-Aggregation, Self Joins, and Non-Equi Joins | 7 |
| M21 | Scalar and Set Subqueries | 7 |
| M22 | EXISTS, NOT EXISTS, and Correlation | 7 |
| M23 | Common Table Expressions and Query Pipelines | 7 |
| M24 | Set Operations and Compatible Result Shapes | 7 |
| M25 | Dates, Timestamps, Time Zones, and Half-Open Ranges | 7 |
| M26 | Period Grouping, Complete Calendars, Cohorts, and Retention Foundations | 7 |
| M27 | Window Foundations and Ranking | 7 |
| M28 | LAG, LEAD, and Period Change | 7 |
| M29 | Running Totals, Frames, Rolling Metrics, and Percent of Total | 7 |
| M30 | Logical Processing Order, Systematic Debugging, and Data Quality | 7 |
| M31 | INSERT, UPDATE, DELETE, and RETURNING | 7 |
| M32 | Transactions, Constraints, and Upserts | 7 |
| M33 | EXPLAIN, Index Fundamentals, and Query Quality | 7 |
Reviews, projects, and mastery
Completion uses independent attempts, delayed review, transfer evidence, and project milestones rather than simple page views.
Cumulative reviews, project requirements, and final transfer checks are visible parts of the course contract.
The prominent Start course action opens `/app`; path-specific practice links below are secondary routes for returning learners.