The WHERE clause only returns rows that match its criteria

Steam has a games under $10 section of their store page. Somewhere deep in the heart of their systems, there’s probably a query that looks something like:

SELECT * 
FROM Items 
WHERE Price < 10

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Filter results using WHERE and HAVING:

*Filter results using WHERE and HAVING

*Use BETWEEN to Filter Results

*Use HAVING with Aggregate Functions

*WHERE clause with NULLNOT NULL values

*The WHERE clause only returns rows that match its criteria

*Use IN to return rows with a value contained in a list

*Use LIKE to find matching strings and substrings

*Use HAVING to check for multiple conditions in a group

Table Of Contents

0Getting started with SQL

3Example Databases and Tables

7UNION, UNION ALL

14Filter results using WHERE and HAVING

15Window Fnctions

16Common Table Expressions

18LIKE operator

19Functions Aggregate

21String Functions

23AND OR operators

28Finding Duplicates on a Column Subset with Detail

32Execution blocks

33Stored Procedures

37CREATE FUNCTION

38SQL Group by vs. Distinct

40CROSS APPLY and OUTER APPLY

42CREATE database

43SKIP TAKE pagination

44EXPLAIN and DESCRIBE

45Information Schema

48SQL Injection

49Cascading Delete

50Order of Execution

51DROP or DELETE database

55GRANT and REVOKE

56Functions ScalarSingle Row

57Relational Algebra

58EXISTS CLAUSE

59Materialized Views

60Functions Analytic

63Clean Code in SQL