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SQL for Data Analysis and AI

Module 02

SELECT, WHERE, ORDER BY, and LIMIT

Help learners understand this topic clearly, practice it on a small example, and produce reviewable evidence before moving to the next module.

Units

  1. Unit 02.00: SELECT, WHERE, ORDER BY, and LIMIT: Read the schema and identify the grain
  2. Unit 02.01: SELECT, WHERE, ORDER BY, and LIMIT: Write the query in small testable steps
  3. Unit 02.02: SELECT, WHERE, ORDER BY, and LIMIT: Check row counts, joins, filters, and nulls
  4. Unit 02.03: SELECT, WHERE, ORDER BY, and LIMIT: Explain what the query proves and does not prove
  5. Unit 02.04: SELECT, WHERE, ORDER BY, and LIMIT: Save the final SQL evidence note

Module work