Bạn đang thắc mắc Foreign Key là gì trong Cơ sở Dữ liệu? Đây chính là "chìa khóa" giúp các bảng liên kết chặt chẽ, đảm bảo tính toàn vẹn và nhất quán cho dữ liệu của bạn. Hiểu rõ về Foreign Key giúp thiết kế DB vững chắc hơn đấy!
Để tìm hiểu chi tiết về Foreign Key, hãy nhấn vào đây: https://interdata.vn/blog/foreign-key-la-gi/
#interdata #khoangoai #ForeignKey #dbms
Q: What sits between you and your Data? A: Identifiers! Read: #URI #LinkedData #PrimaryKey #ForeignKey #ODBC #NewSQL
Keys in DBMS | Super Key| Candidate Key| Primary Key| Foreign Key |DBMS Lect 14| Shanu Kuttan |Hindi
DBMSKeys #SuperKey #CandidateKey #PrimaryKey #ForeignKey #AlternateKey #CompositeKey #Keys in DBMS This video ... source
Spent hours today looking for the following: I have a #Flask app with #sqlalchemy. I use #flaskadmin for a big part of functionality.
I need to pass a custom query for a select field that is a #foreignkey between Table A and table B. I try to accomplish that while being in the list view (the table view) for all entries in Table A, where each record has a foreignkey from Table B to only show those records in the select field for the foreignkey that are B.active==true.Is there a way to do this?
Django 5.0 has been released 🎉
After months of work, everyone can use this great new version 🙌
My favorite features are:
• 🤖 generated fields
• ✅ database default values
• 🔑 prefetch related for generic foreign keys
Which are your favorite features?
https://www.djangoproject.com/weblog/2023/dec/04/django-50-released/
#Django #GeneratedField #GeneratedColumn #Database #ORM #SQLite #PostgreSQL #MySQL #MariaDB #Default #ForeignKey #Django5 #Python #Python312 #Web #Framework #Release #ORM
