Accelerated Introduction to SQL Using Microsoft SQL Server Module 2. Covers inner, outer and self joins, correlated and uncorrelated subqueries, unions, aggregate functions, calculated fields and grouping.

1. SQL200 SQL Programming Workshop 2 – Joins, Subqueries, Unions, Calculations and Grouping Bookstore SQL200 Module 2 Based on SQL Clearly Explained by Jan Harrington

4. SQL200 Contact Information Bookstore SQL200 Module 2 P.O. Box 6142 Laguna Niguel, CA 92607 949-489-1472 http://www.d2associates.com [email_address] Copyright 2001-20011 All rights reserved.

6. SQL200 SQL Programming Part 1 – Joins Bookstore SQL200 Module 2

7. Bookstore SQL200 Module 2 Relational Database with constraints (from text)

10. Bookstore SQL200 Module 2

12. Inner Join Bookstore SQL200 Module 2 Older Syntax: Select <column-list> From <tablelist> Where <predicate> Still very commonly used

13. Inner Join Bookstore SQL200 Module 2 Example using older syntax: SELECT customer_first_name, customer_street, order_numb, order_date from customers, orders Where customers.customer_numb = orders.customer_numb

14. Inner Join with Result Bookstore SQL200 Module 2

15. Inner Join (New Syntax) Bookstore SQL200 Module 2 Basic SQL 92 Syntax: Select <column-list> From <table1> Inner join <table2> On <join condition>

16. Inner Join Bookstore SQL200 Module 2 Basic Example: SELECT customer_first_name, customer_street, order_numb, order_date from customers inner join orders on customers.customer_numb = orders.customer_numb

17. Inner Join with Result Bookstore SQL200 Module 2

19. Bookstore SQL200 Module 2 Inner Join Result in MS Access

22. Bookstore SQL200 Module 2 Cross Join Result Set in MS Access

26. Multi-table Join with Results Bookstore SQL200 Module 2

31. Self Joins Bookstore SQL200 Module 2 SELECT e.*, m.name FROM employees AS e, employees AS m WHERE e.managerid = m.employeeid;

32. Bookstore SQL200 Module 2

34. Left Outer Join Bookstore SQL200 Module 2 Basic SQL 92 Syntax: Select <column-list> From <table1> Left join <table2> On <join condition>

35. Left-Join Bookstore SQL200 Module 2 Basic Example: SELECT customer_first_name, customer_street, order_numb, order_date from customers as c left join orders as o on c.customer_numb = o.customer_numb

36. Bookstore SQL200 Module 2

37. Left Join with Results Bookstore SQL200 Module 2

38. SQL200 SQL Programming Part 2– Subqueries, Unions Bookstore SQL200 Module 2

40. Uncorrelated Subquery Bookstore SQL200 Module 2 select isbn, quantity from orderlines where order_numb in (select order_numb from orders where order_date between ‘1/1/99’ and ‘12/31/99’);

41. Uncorrelated Subquery with Results Bookstore SQL200 Module 2

43. Negative Subquery Bookstore SQL200 Module 2 select isbn, quantity from orderlines where order_numb not in (select order_numb from orders where order_date between ‘1/1/99’ and ‘12/31/99’);

44. Negative Subquery with Results Bookstore SQL200 Module 2

46. Correlated subquery with Exists Bookstore SQL200 Module 2 SELECT isbn, quantity FROM orderlines AS ol WHERE exists (select * from orders o where ol.order_numb = o.order_numb and o.order_date between ‘1/1/99’ and ‘12/31/99’); This type of query covered in intermediate SQL class

48. Unions Bookstore SQL200 Module 2 Select <column-list> from <table1> Union [ALL] Select <same-columns> from <table2>

49. Unions Bookstore SQL200 Module 2 select * from employees union all select * from employees_copy

50. Bookstore SQL200 Module 2 Results of Union query

51. SQL200 SQL Programming Part 3 – Calculations, Aggregates Bookstore SQL200 Module 2

53. Calculated field in the Result Bookstore SQL200 Module 2

54. Bookstore SQL200 Module 2

57. Concatenation Bookstore SQL200 Module 2 select customer_first_name + ‘ ‘ + trim(customer_last_name) as Name from customers

58. Bookstore SQL200 Module 2

61. Aggregate Functions Bookstore SQL200 Module 2 Basic syntax: Select <function>(<column>) From <table> Group by <column-list> Having <predicate> Group by all columns to left of one(s) you want to aggregate

62. Aggregate Functions Bookstore SQL200 Module 2 SELECT order_numb, Count(*) AS [Number of Order Lines] , Sum(quantity) AS [Total Quantity], Sum(quantity * cost_each) AS [Total Amount] FROM order_lines GROUP BY order_numb having count(*) > 1;

63. Bookstore SQL200 Module 2

66. Exercise Result Bookstore SQL200 Module 2 [end module]

67. Notes Bookstore SQL200 Module 2

68. Notes Bookstore SQL200 Module 2