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SQL · 25 lessons

06Aggregation and Grouping22m 07Subqueries25m 08Indexes and Performance20m 09Views and CTEs24m 10Transactions20m 15Date and Time Functions22m 17Set Operations25m 19Constraints And Keys25m

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16Prior lessonNull Handling17 · Set Operationslesson 17 of 25Up nextData Types And Casting18

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learningsql.orgsql/17 · exerciselesson 17 of 25