Is the primary key automatically indexed in MySQL?

by

The primary key is always indexed. This is the same for MyISAM and InnoDB, and is generally true for all storage engines that at all supports indices.

More Related Contents:

  1. Differences between INDEX, PRIMARY, UNIQUE, FULLTEXT in MySQL?
  2. Does MySQL index foreign key columns automatically?
  3. What’s the difference between using INDEX vs KEY in MySQL?
  4. DOs and DONTs for Indexes [closed]
  5. Which DB technology is sued to solve the following search issue? [closed]
  6. MyISAM versus InnoDB [closed]
  7. Compare two MySQL databases [closed]
  8. How should I resolve –secure-file-priv in MySQL?
  9. What does character set and collation mean exactly?
  10. What’s faster, SELECT DISTINCT or GROUP BY in MySQL?
  11. Storing image in database directly or as base64 data?
  12. Implementation of Levenshtein distance for mysql/fuzzy search?
  13. How do MySQL indexes work?
  14. Best type of indexing when there is LIKE clause [duplicate]
  15. Maximum length for MySQL type text
  16. What effects does using a binary collation have?
  17. MySQL SELECT increment counter
  18. Hyphens in column names in MySQL DB
  19. Error Code: 1215. Cannot add foreign key constraint (foreign keys)
  20. Error renaming a column in MySQL
  21. Modeling Product Variants
  22. Mysql database sync between two databases
  23. What’s the best database structure to keep multilingual data? [duplicate]
  24. Does mysql have the equivalent of Oracle’s “analytic functions”?
  25. Using reserved words in column names
  26. What is the difference between SQL and MySQL? [closed]
  27. mysql Failed to read auto-increment value from storage engine
  28. Selecting distinct 2 columns combination in mysql
  29. Inventory management with stock options
  30. Failed to connect to mysql at 127.0.0.1:3306 with user root access denied for user ‘root’@’localhost'(using password:YES)

Leave a Comment