SQL WHERE Clause Explained | Filter Data Like a Pro

Опубликовано: 01 Август 2017
на канале: TecKnowledge LLC

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Learn how to use the SQL WHERE clause to filter records and return only the data you need. The WHERE clause is one of the most important SQL concepts because it allows you to narrow your results and work more efficiently with your database.

Instead of displaying every record in a table, the WHERE clause lets you search for specific data using conditions and logical operators. In this lesson, you'll learn the basic syntax of the WHERE clause and how it serves as the foundation for more advanced filtering techniques used throughout SQL development.

WHAT YOU'LL LEARN:
• The purpose of the WHERE clause
• Basic SQL filtering syntax
• How SELECT, FROM, and WHERE work together
• Common comparison operators
• Using equals, greater than, and less than operators
• Filtering on multiple columns
• Using AND and OR conditions
• Preparing for advanced filtering techniques and wildcards

TIMESTAMPS:
00:00 Introduction to Filtering SQL Results
00:11 Understanding the Purpose of the WHERE Clause
00:20 Basic WHERE Clause Syntax Explained
00:38 Common Comparison Operators
01:00 Filtering with Multiple Conditions Using AND/OR
01:21 Preview of Advanced Filtering Techniques

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