• Learning MySQL By Example
  • Introduction
  • 1. How to Retrieve Data From a Single Table
  • 2. How to Retrieve Data from Multiple Tables
  • 3. Using Functions
  • 4. How to Insert, Update, Delete Data in Tables
  • 5. Summary Queries and Aggregate Functions
  • 6. Working With Subqueries
  • 7. SQL Views
  • 8. SQL Indexes
  • Glossary
  • Index
  • Download
  • Translations
  • 4.4

    The DELETE Clause

    The DELETE Clause

    • You can delete single or multiple columns with a single statement.
    • You can use a subquery or a WHERE clause with a DELETE statement.
    • By default MySQL is in safe update mode which prevents coding a delete statement without a WHERE clause.

    Code Example:

    1    USE world;
    2    DELETE 
    3    FROM city 
    4    WHERE name = 'san felipe' AND countrycode = 'chl';

    Results:

    iud_05.png

    DELETE 

    FROM city

    WHERE name = 'san felipe' AND countrycode = 'chl';

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