Ios Sqlite Foreign Key Support

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sql - Does SQLite3 not support foreign key constraints ...

    https://stackoverflow.com/questions/9937713/does-sqlite3-not-support-foreign-key-constraints
    In SQLite 3.x, you have to make the following query every time you connect to an SQLite database: PRAGMA foreign_keys = ON; Otherwise SQLite will ignore all foreign key constraints. Why every time? Backwards compatibility with SQLite 2.x, according to the the documentation. In SQLite 4.x, FK constraints will be enabled by default.

How To Use SQLite to Manage Data in iOS Apps

    https://www.appcoda.com/sqlite-database-ios-app-tutorial/
    The database that can be used by apps in iOS (and also used by iOS) is called SQLite, and it’s a relational database. It is contained in a C-library that is embedded to the app that is about to use it.

Foreign Keys in Sqlite.net — Xamarin Community Forums

    https://forums.xamarin.com/discussion/2973/foreign-keys-in-sqlite-net
    Apr 01, 2013 · I have a cross platform app using Sqlite.net. How do I go about declaring a FK? Say I have these tables, with a FK from Area to Location (and a self referencing FK from Area to Area via ParentID), and ignoring the fact that the IDs are Guids, that is a constraint I inherited from the client and cannot change, although I could declare them as strings) :

SQLite: Foreign Keys - techonthenet.com

    https://www.techonthenet.com/sqlite/foreign_keys/foreign_keys.php
    This SQLite tutorial explains how to use Foreign Keys in SQLite with syntax and examples. A foreign key is a way to enforce referential integrity within your SQLite database. A foreign key means that values in one table must also appear in another table.

SQLite Home Page

    https://sqlite.org/index.html
    What Is SQLite? SQLite is a C-language library that implements a small, fast, self-contained, high-reliability, full-featured, SQL database engine.SQLite is the most used database engine in the world. SQLite is built into all mobile phones and most computers and comes bundled inside countless other applications that people use every day.

SQLite: Foreign Keys with Cascade Delete - techonthenet.com

    https://www.techonthenet.com/sqlite/foreign_keys/foreign_delete.php
    TIP: You can not add a foreign key with casade delete to a table using ALTER TABLE because SQLite does not support ADD CONSTRAINT in the ALTER TABLE statement. However, we will show you a workaround later in this tutorial that will allow you to add a foreign key …

Ios - How to enable Foreign Key constraint in SQLITE with ...

    https://www.howtobuildsoftware.com/index.php/how-do/cdPZ/ios-objective-c-sqlite3-foreign-keys-how-to-enable-foreign-key-constraint-in-sqlite-with-objective-c
    Tag: ios,objective-c,sqlite3,foreign-keys Today I noticed that Foreign key constraint on my SQLite table does not work. After reading on Stack Overflow, I found out that this should be enabled.

SQLite foreign key examples alvinalexander.com

    https://alvinalexander.com/android/sqlite-foreign-keys-example
    SQLite foreign keys FAQ: Can you show me how to define foreign keys in a SQLite database table design?. The SQLite database does support foreign keys, and its foreign key syntax is similar to other databases. Here’s a quick SQLite foreign key example. A SQLite foreign key example. To show how this works, first define two database tables that don’t have any foreign keys:



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