SQLITE AUTOINCREMENT HOW TO

You can implement it with your way - to check next available ID every time, because you have multiple mobile devices, and you have objects at API side with ID's 1, 2, 3, 4, 5, you can in the same moment, try to create new object at TWO DIFFERENT mobile devices with ID 6, which would lead conflict at API side later on. When you have a database table with a SQLite autoincrement field, there are two ways to insert data into that table and automatically increment the primary key. The SQL query for table creation is included. Im trying to a have a table with an auto incremented primary key. When your object has been synchronized with API, ID should match API object ID. androidandroid-sqliteauto-incrementsqlite. sqlite> create table company( id integer primary key autoincrement, name text not null. When your object is local only (hasn't been synchronized with API yet), it should have only LocalID filled, and ID = 0. SQLite has an interesting way of handling auto-increment columns. We can auto increment a field value by using AUTOINCREMENT.

SQLITE AUTOINCREMENT HOW TO

LocalID is used only at mobile app side, and it's not used by API side. Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java. SQLite AUTOINCREMENT is a keyword used for auto incrementing a value of a field in the table. YourModel table with two ID's colum - LocalID (any autoincrement/autogenerated/guid ID, and it would be PRIMARY KEY at mobile side) + COMPLETELLY UNIQUE ID column (based on objects ID's at API side). schema CREATE TABLE androidmetadata (locale TEXT) CREATE TABLE part (id INTEGER PRIMARY KEY AUTOINCREMENT. YourModelUniqueApi1:1 table + YourModelTempLocal table Migration squashing is only available for the MySQL, PostgreSQL, and SQLite databases and utilizes the databases command-line client.

Lol, that's standard 'problem' with multiple non-synchronized DB.įirst of all - if you want to be able to create any unique objects at API, as well as at multiple mobile devices side, you need to have:

Sqlite autoincrement