Upgrade to Pro — share decks privately, control downloads, hide ads and more …

Mauricio Gelves - WordPress Database: What’s be...

Sponsored · Ship Features Fearlessly Turn features on and off without deploys. Used by thousands of Ruby developers. →
Avatar for WordPress Greek Community WordPress Greek Community PRO
November 19, 2016
Programming
550
2

Mauricio Gelves - WordPress Database: What’s behind those 12 tables - WordCamp Athens 2016

Avatar for WordPress Greek Community

WordPress Greek Community PRO

November 19, 2016

More Decks by WordPress Greek Community

See All by WordPress Greek Community
Filippos Karailanidis - Beyond ChatGPT: AI Toolkit for the WordPress Developer
Avatar for WordPress Greek Community wpgr
PRO
0
45
Orestis Samaras - Modern WordPress Development with Composer
Avatar for WordPress Greek Community wpgr
PRO
0
32
Eleni Tsertou - Ταχύτερο website με Persistent Object Cache: Μύθος ή Αλήθεια;
Avatar for WordPress Greek Community wpgr
PRO
0
34
George Korakas - WordPress Security 2025: From Real Threats to Practical Defenses
Avatar for WordPress Greek Community wpgr
PRO
0
44
Δημήτρης Καρβούνης - Πέρα από το Admin Panel: Πώς να μιλήσεις στο WordPress σαν Developer μέσω REST API
Avatar for WordPress Greek Community wpgr
PRO
0
28
Αναστασία Αδαμούδη - Δημιουργία σύνθετου μενού πλοήγησης σε block θέματα
Avatar for WordPress Greek Community wpgr
PRO
0
21
Νίκος Μαυράκης - Κοστολογώντας τη δημιουργικότητα
Avatar for WordPress Greek Community wpgr
PRO
0
42
Jovana Smoljanovic Tucakov - AI vs. Human Content: What Works, What Backfires, and What’s Next
Avatar for WordPress Greek Community wpgr
PRO
0
41
Λεωνίδας Μηλώσης - Optimize – optimize – optimize: Caring for performance of your WordPress plugin or website
Avatar for WordPress Greek Community wpgr
PRO
0
34

Other Decks in Programming

See All in Programming
Generative UI & AI-Assistants for Your Angular Solutions
Avatar for Manfred Steyer manfredsteyer
PRO
1
180
Creating Composable Callables in Contemporary C++
Avatar for Björn Fahller rollbear
0
210
1年で人数1.5倍、PR数5.5倍増。 品質とアウトカムはどうなったか、 何が効いたか
Avatar for ike ike002jp
0
130
AI駆動開発を妨げる技術的負債の解消アプローチ / ai-refactoring-approach
Avatar for MinoDriven minodriven
17
9k
PHP初心者セッション2026　〜生成AIでは見えない裏側を知る：今だからLAMPを通して仕組みを学ぶ〜
Avatar for Hideo Kashioka kashioka
0
290
1B+ /day規模のログを管理する技術
Avatar for Broadleaf Co., Ltd. broadleaf
0
140
Honoでのサプライチェーン侵害対策 〜 3つのライブラリに学ぶ
Avatar for Yusuke Wada yusukebe
7
1.9k
音楽のための関数型プログラミング言語mimiumにおける多段階計算の活用
Avatar for Tomoya Matsuura tomoyanonymous
1
320
Generative UI & AI-Assistants for Your Angular Solutions
Avatar for Manfred Steyer manfredsteyer
PRO
0
110
Prismを使った型安全な暗号化_関数型まつり2026
Avatar for _fhhmm _fhhmm
0
130
ローカルLLMでどこまでコードが書けるか -拡張版 /　How much code can be written on a local LLM Extended
Avatar for Naoki Kishida kishida
12
4.8k
「正の参照」と 「負の導出」で組む ハーネスエンジニアリング
Avatar for Masahiro Watanabe cottpan
1
140

Featured

See All Featured
Claude Code どこまでも/ Claude Code Everywhere
Avatar for nwiizo nwiizo
65
56k
Deep Space Network (abreviated)
Avatar for Tony Rice tonyrice
0
230
Designing Powerful Visuals for Engaging Learning
Avatar for Mike Taylor tmiket
1
450
Let's Do A Bunch of Simple Stuff to Make Websites Faster
Avatar for Chris Coyier chriscoyier
508
140k
Building an army of robots
Avatar for Kyle Neath kneath
306
46k
SERP Conf. Vienna - Web Accessibility: Optimizing for Inclusivity and SEO
Avatar for Sara Fernández Carmona sarafernandez
2
1.5k
"I'm Feeling Lucky" - Building Great Search Experiences for Today's Users (#IAC19)
Avatar for Dan Newman danielanewman
230
23k
Test your architecture with Archunit
Avatar for Yoan thirion
1
2.3k
Evolving SEO for Evolving Search Engines
Avatar for Ryan Jones ryanjones
0
240
Marketing Yourself as an Engineer | Alaka | Gurzu
Avatar for Gurzu gurzu
0
260
A Tale of Four Properties
Avatar for Chris Coyier chriscoyier
163
24k
エンジニアに許された特別な時間の終わり
Avatar for watany watany
107
250k

Transcript

  1. WordPress Database: What’s behind those 12 tables? Mauricio Gelves |

    @maugelves

  2. Do you know this Masterpiece?

  3. None
  4. None
  5. None

  6. A love story

  7. None

  8. Set of columns Data types Indexes The table anatomy

  9. Table rows

  10. I’m Rebel!

  11. Normalization

  12. Process to avoid: • Data redundancy • Unnecessary updates •

    Data integrity problems
  13. None
  14. None
  15. None
  16. None
  17. None

  18. WordPress code of conduct:
 No political jokes are allowed

  19. UPDATE tbl_students SET president = '<new president name>' WHERE president

    = 'Prokopis Pavlopoulos' On every change:

  20. Normalized tables: FK’s (Foreign Keys)

  21. ¿Is WordPress Rebel?

  22. • wp-posts • wp-term-taxonomy

  23. None
  24. None
  25. None

  26. 33,3333333333333333333333333333333333333 333333333333333333333333333333333333333 333333333333333333333333333333333333333 333333333333333333333333333333333333333 333333333333333333333333333333333333333 333333333333333333333333333333333333333 333333333333333333333333333333333333333 333333333333333333333333333333333333333 333333333333333333333333333333333333333 333333333333333333333333333333333333333

    333333333333333333333333333333333333333 333333333333333333333333333333333333…%

  27. ¿Why WordPress powers 26% of all websites?

  28. ES FLEXIBLE

  29. KEY => VALUE

  30. wp_posts WordPress’ Heart.

  31. wp_posts

  32. ¿Where’s the rest of the information?

  33. Meta Tables wp_posts => wp_postmeta wp_users => wp_usermeta wp_comments =>

    wp_commentmeta wp_terms => wp_termmeta

  34. KEY VALUE => wp_posts

  35. KEY VALUE => Usuarios

  36. SHE ’S ORGANIZED

  37. KEY VALUE => wp_options

  38. SHE’S ADAPTABLE

  39. Taxonomies

  40. Taxonomías Simple terms Which taxonomy has?

  41. Es muy fácil comunicarse con ella: Diapositiva: una mujer con

    un teléfono It’s easy to talk to her

  42. SQL Structured Query Language

  43. Estructura de consulta: Which column/s? Which table/s? Should we filter

    the search?

  44. ¿Do we have to know SQL to work with WordPress?

  45. WordPress Functions:

  46. What if we need Meta values?

  47. WordPress Functions:

  48. and for more complex searches?

  49. WP_Query

  50. None
  51. None
  52. None

  53. CUSTOM TABLES How and why?

  54. Why Custom Tables?: • Efficiency (Inner joins) • Efficiency (calculated

    fields) • Space (uncompleted fields) • Data security

  55. How to create a Custom Tables?: • Create it on

    plugin/theme activation
  56. None

  57. How to create a Custom Tables?: • Create it on

    plugin/theme activation • UI implementation with WP_List class
  58. None

  59. http://wpengineer.com/2426/wp_list_table-a-step-by-step-guide/

  60. Because of this and more I’m in love with the

    WordPress database.

  61. Thank you! @maugelves