Many reference one table?


Warning: count(): Parameter must be an array or an object that implements Countable in /home/styllloz/public_html/qa-theme/donut-theme/qa-donut-layer.php on line 274
0 like 0 dislike
17 views
How to organize a relationship from one table with lots of directories? While there were 10 of them - were stored in columns. Now 50 of them and I was plagued by vague doubts that add 40 columns - the right decision. Experience with gulkin nose -pleeease reply is correct (practical) solution.
by | 17 views

1 Answer

0 like 0 dislike
download any of the books on the subject
DATABASE DESIGN
by

Related questions

0 like 0 dislike
1 answer
MySQL — link one-to-many. How to use?
asked Apr 11, 2019 by danil_linkins
0 like 0 dislike
3 answers
How to query one to many?
asked Apr 9, 2019 by apptimeru
0 like 0 dislike
2 answers
How to change the values in one table by taking values from another?
asked Apr 12, 2019 by sendnikkei

Most popular tags

javascript php css html jquery wordpress python linux web-development mysql android windows java layout c# computer-networks node.js cpp iron yii vue.js 1C-Bitrix react laravel django nginx system-administration search-engine-optimization api ubuntu the-it-education. ajax sql programming hosting cms design apache google-chrome bootstrap Vkontakte macos google network-administration git laptops algorithms regular-expressions unity-game-engine email angular database network-equipment software wooсommerce debian .net ios information-security video law-in-it browsers books parsing wi-fi game-development career htaccess postgresql telegram mikrotik mobile-development ruby-on-rails the-domain-name-system modx Yandex c json opencart Habr freelance vpn asp.net windows-server symfony bots hard-drives math qt DIY audio frontend payment-system bash electronics gulp.js user-interface docker online-shopping
110,608 questions
257,187 answers
0 comments
40,796 users