SQL: Part I
Contents
- Creating and dropping tables
- Basic queries: SFW statement
- Example: reading a table
- Example: selection and projection
- Example: join, Example: rename
- A more complicated example
- Set versus bag semantics, A case for bag semantics
- SQL set and bag operations, SQL features covered so far
- IN subqueries, Semantics of subqueries
- Scoping rule of subqueries, Examples of quantified subqueries
- More ways to get the most popular
- SQL features covered so far, Aggregates with DISTINCT
- Grouping, Semantics of GROUP BY, Aggregates with no GROUP BY
- Restriction on SELECT, Examples of invalid queries
- HAVING examples, ORDER BY example
Free Online Tutorial: SQL: Part I
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