/courses/sql/getting-started-with-sql/Recent content in Getting Started with SQL on DATATWEETSHugoenCopyright (c) 2025 DatatweetsTue, 23 Jun 2026 09:00:00 +0200/courses/sql/getting-started-with-sql/lesson-1-exploring-databases-and-schemas/Fri, 14 Nov 2025 09:00:00 +0200/courses/sql/getting-started-with-sql/lesson-1-exploring-databases-and-schemas/Discover what SQL is, explore a relational database schema, write your first SELECT statements, document queries with comments, and rename columns using aliases./courses/sql/getting-started-with-sql/lesson-2-columns-data-types-and-functions/Fri, 14 Nov 2025 09:00:00 +0200/courses/sql/getting-started-with-sql/lesson-2-columns-data-types-and-functions/Learn how SQL stores data types, inspect table metadata with PRAGMA, do arithmetic on columns, and reshape values with ROUND, UPPER, LOWER, and concatenation./courses/sql/getting-started-with-sql/lesson-3-filtering-rows-with-numbers/Fri, 14 Nov 2025 09:00:00 +0200/courses/sql/getting-started-with-sql/lesson-3-filtering-rows-with-numbers/Use the WHERE clause and comparison operators to filter rows, find missing values with IS NULL, and combine conditions with BETWEEN, IN, AND, and OR./courses/sql/getting-started-with-sql/lesson-4-filtering-with-text-and-categories/Fri, 14 Nov 2025 09:00:00 +0200/courses/sql/getting-started-with-sql/lesson-4-filtering-with-text-and-categories/Find unique values with SELECT DISTINCT, filter categories with IN and NOT, and match text patterns with the LIKE operator and its % and _ wildcards./courses/sql/getting-started-with-sql/lesson-5-sorting-and-limiting-results/Fri, 14 Nov 2025 09:00:00 +0200/courses/sql/getting-started-with-sql/lesson-5-sorting-and-limiting-results/Sort query results with ORDER BY in ascending and descending order, sort by multiple columns, combine sorting with WHERE and LIMIT, and format SQL cleanly./courses/sql/getting-started-with-sql/lesson-6-conditional-logic-with-case-and-clean-style/Fri, 14 Nov 2025 09:00:00 +0200/courses/sql/getting-started-with-sql/lesson-6-conditional-logic-with-case-and-clean-style/Use CASE expressions to flag, bin, and regroup values, handle the missing ELSE, sort by a CASE expression, and write performant SQL with best practices./courses/sql/getting-started-with-sql/lesson-7-guided-project-analyzing-kickstarter-campaigns/Fri, 14 Nov 2025 09:00:00 +0200/courses/sql/getting-started-with-sql/lesson-7-guided-project-analyzing-kickstarter-campaigns/Apply everything you have learned in a guided project: explore the schema, select and filter a real Kickstarter dataset, sort results, and bucket campaigns with CASE.