Why can't I automatically add a primary key for an id when using the SQlite3 database on Android? No ., Android sqlite3

Why can't I automatically add a primary key for an id when using the SQlite3 database on Android? No ., Android sqlite3

Why can't I automatically add a primary key for an id when using the SQlite3 database on Android? No. To write it like this: id integer primary key. If you want to write an integer instead of an int, an error is returned!

Http://blog.csdn.net/zhaocundang

 

SQLite help class, so that the ID number can be automatically added for writing

 

Public void onCreate (SQLiteDatabase db) {// TODO Auto-generated method stub db.exe cSQL ("create table users (id integer primary key, name text, pwd text )"); string SQL = "insert into users values (, 0)"; // id: Add db.exe cSQL (SQL );}