Dittofi
  • Tutorials
    • Tutorial Index
    • Quick Start
    • Dittofi Essentials
      • Part 1: Frontend terms and concepts
      • Part 2: Backend terms and concepts
      • Part 3: Connecting frontend and backend
      • Part 4: Dittofi app structure
    • Dittofi App Design
      • 🏗️App architecture 101
      • ◼️Backend app development 101
      • 🟪Frontend app development 101
      • 🔰(optional) Web developer beginner series
  • Learn Frontend
    • 👨‍💻Getting Started
      • Welcome to Dittofi
      • Intro to the Dittofi Design Studio (Frontend)
    • 🟩Pages
    • 🟪Elements
      • Types
        • Button Element
        • Div Block Element
        • Form Block Element
        • Link Block Element
        • List Element
        • Modal Box Element
        • Tabs Element
        • Columns Element
        • Image Element
      • Partials
      • Prefabs
      • Custom
    • 🟧Variables
      • Array
      • Checkbox
      • Collection
      • Collection (Custom Model)
      • Collection (System Custom Model)
      • Custom Model
      • Date
      • Datetime
      • File
      • Json
      • Number
      • Number with decimal
      • Model
      • System Custom Model
      • Text
      • UUID
    • 🟨Events
      • 🟨External
        • HTTP Request
        • Run Endpoint
      • 🟨Flow Control
        • Condition
        • Run Action
        • Loop
        • Sleep
      • 🟨Maths
        • Add
        • Divide
        • Modulus
        • Multiply
        • Subtract
      • 🟨Navigation
        • Open Page
      • 🟨Notifications
        • Alert
        • Confirm
      • 🟨Other
        • Copy To Clipboard
        • Run Custom
      • 🟨Text
        • Concat
        • Contains
        • Ends With
        • I Contains
        • I Ends With
        • I Starts With
        • LTrim
        • RTrim
        • Text To Upper
        • Text To Lower
        • Trim
        • Starts With
      • 🟨Variables
        • Set Field
        • Remove Field
      • Validate
    • 🟦CSS Layouts
      • Holy Grail Layout
      • Side Bar Layout
      • Sticky Footer Layout
      • Sticky Header Layout
      • CSS Frameworks
    • 🔲CSS Frameworks
    • Component Libraries
    • Meta Attributes
  • Learn Backend
    • 🖥️Getting Started
      • Intro to Data
      • Intro to APIs
      • Build your first custom API
      • Actions & Events
    • 🟫Back-End Actions
    • 🟩Custom Models
      • 🟩Attributes
        • Array
        • Checkbox
        • Custom Model
        • Collection (Custom Model)
        • Collection (System Custom Model)
        • Date
        • Datetime
        • File
        • Number
        • Number With Decimal
        • Json
        • Text
    • ◼️Data Models
      • Database Fundamentals
        • Database relationships
      • ◼️Columns
        • Attachment
        • Auto Increment
        • Checkbox
        • Date
        • Datetime
        • Duration
        • Email
        • Long text
        • Link to another record field
        • Number
        • Number with decimal
        • Password
        • Phone number
        • Percent
        • Price
        • Rating
        • Single select
        • Single line text
        • URL
    • 🟥Events
      • 🟦Arrays
        • Append
        • Array Pop
        • At
        • Length
        • Prepend
        • Range
      • 🟦Conversions
        • Base64 Encode
        • Base64 Decode
        • Json Decode
        • Json Encode
        • Path Escape
        • Path Unescape
        • Query Escape
        • Query String Parse
        • Query Unescape
        • To Bool
        • To Float
        • To Int
        • To Str
        • Yaml Encode
        • Yaml Decode
      • 🟦Database Requests
        • Create
        • Create Or Update
        • Delete
        • Has Record
        • Read Event
        • Update
      • 🟦External
        • HTTP Request
        • SFTP Download
        • SFTP Upload
      • 🟦Files
        • CSV Reader Event
        • CSV Writer Event
        • File Read
        • File Save
        • File Size
        • File Type
        • JSON Reader
        • PDF Generator
      • 🟦Flow Control
        • Condition
        • Loop
        • Return
        • Run Action
        • Sleep
      • 🟦Notifications
        • Send Mail
        • Connect Websocket
        • Message Websocket
      • 🟦Maths
        • Add
        • Acos
        • Acosh
        • Asin
        • Asinh
        • Atan
        • Atanh
        • Cbrt
        • Ceil
        • Divide
        • Modulus
        • Multiply
        • Subtract
      • 🟦Security
        • Compare Password
        • JWT Decode
        • JWT Encode
        • Login
        • Logout Web User
        • Password Generator
        • Random Number
      • 🟦Time
        • Add Time
        • Day
        • Format Time
        • Minute
        • Nanosecond
        • Parse Time
        • Second
        • Time In
        • Year
        • Year Day
      • 🟦Text
        • Concat
        • Contains
        • Ends With
        • Execute Template
        • I Contains
        • I Ends With
        • I Starts With
        • Starts With
        • LTrim
        • RTrim
        • Replace
        • Regex Find All String
        • Regex Find String
        • Regex Match String
        • Trim
        • Text To Lower
        • Text To Upper
        • Text To Title
        • Url Getarg
      • 🟦Other
        • Assign
        • Run Custom
        • Redirect Web Page Event
        • Render Web Template Event
    • 🟧Variables
      • Array
      • Checkbox
      • Collection
      • Collection (Custom Model)
      • Collection (System Custom Model)
      • Custom Model
      • Date
      • Datetime
      • File
      • Json
      • Number
      • Number with decimal
      • Model
      • System Custom Model
      • Text
      • UUID
    • 🟪Webservices
  • Templates
    • Two sided marketplace template
      • Introduction
        • Part I: Installing and setting up the marketplace template
        • Part II: Understanding what features are included in the marketplace template
        • Part III: Customizing your marketplace frontend without coding
        • Exploring Dittofi's marketplace API
      • Listings
        • How to create a marketplace listing
    • How to build a CRUD app
  • Third Party APIs
    • OAuth 2.0 APIs
      • Introduction To OAuth 2.0
      • Google OAuth 2.0 - PART I
      • Google OAuth 2.0 - PART II
  • Dittofi Admin
    • Your Account
      • Workspace Admin
      • Manage Billing
      • Connect a custom domain
      • How to use a discount code to Dittofi Pro
  • FAQ
    • API Generator
    • How to write custom SQL?
    • Why does my image not display?
    • How can I set up Google Analytics?
    • Exporting and deploying my frontend code
    • What is a partial and what is a prefab?
    • How to set up a basic mulit tenant app on Dittofi
    • How to write a custom endpoint in Dittofi
    • How to integrate Font Awesome into Dittofi
    • How can I set up Dittofi to run on my own private server?
    • How to add roles such as Super Admin, Admin, Manager & User
    • How to prevent duplicate records being added to the database
    • What to do when relation cannot be created because their is violating data in the referenced table
  • Change Logs
    • Dittofi Change Logs
Powered by GitBook
On this page

Was this helpful?

  1. Learn Backend
  2. Data Models
  3. Database Fundamentals

Database relationships

THIS PAGE IS UNDER CONSTRUCTION

PreviousDatabase FundamentalsNextColumns

Last updated 1 year ago

Was this helpful?

◼️