SQL Server FAQs - Understanding SELECT Statements with Joins and Subqueries

SQL Server FAQs - Understanding SELECT Statements with Joins and Subqueries

A collection of 17 FAQs on SELECT statements with joins and subqueries. Clear answers are provided with tutorial exercises on joining multiple tables with inner and outer joins; using subqueries with IN, EXISTS, and FROM clauses; using UNION operations.

1. How To Join Two Tables in a Single Query?


2. How To Write a Query with an Inner Join?


3. How To Define and Use Table Alias Names?


4. How To Write a Query with a Left Outer Join?


5. How To Write a Query with a Right Outer Join?


6. How To Write a Query with a Full Outer Join?


7. How To Write an Inner Join with the WHERE Clause?


8. How To Name Query Output Columns?


9. What Is a Subquery in a SELECT Query Statement?


10. How To Use Subqueries with the IN Operators?


11. How To Use Subqueries with the EXISTS Operators?


12. How To Use Subqueries in the FROM Clause?


13. How To Count Groups Returned with the GROUP BY Clause?


14. How To Return the Top 5 Rows from a SELECT Query?


15. How To Return the Second 5 Rows?


16. How To Use UNION to Merge Outputs from Two Queries Together?


17. How To Use ORDER BY with UNION Operators

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