Question

I’m trying to create a table and I’ve tried so many times to figure this out… for some reason it won’t accept this.. it’s saying something about the auto_increment

create table if not exists Assignments(
    id auto_increment primary key,
    class_name VARCHAR(30),
    assignment_name VARCHAR(30) not null,
    due_date VARCHAR(30) not null,
    notes VARCHAR(30));

whats the problem?

EDIT: i am trying to use SQLite eventually but this command was written on my mySQL thru WAMP

Answer 1

First of all, Android uses SQLite, so your mysql tag is slightly incorrect unless I’m missing something you’re doing.

Secondly, you would say

CREATE TABLE ASSIGNMENTS(id INTEGER PRIMARY KEY, class_name TEXT, assignment_name TEXT NOT NULL, due_date TEXT NOT NULL, notes TEXT);

“autoincrement” is handled automatically if you set your primary key as an INTEGER type, even though under the covers SQLite uses strings for everything

reference: SQLite datatypes

further reference: INTEGER PRIMARY KEY

Even more reference: “If an INSERT statement attempts to insert a NULL value into a rowid or integer primary key column, the system chooses an integer value to use as the rowid automatically. A detailed description of how this is done is provided separately.”