Eclipse中的Android'create table if not exists'错误

Question

我正在创建一个应用程序,用于将EditText中的输入字符串值输入到SQLite数据库中.通过模拟器运行应用程序时,最初创建数据库时会收到logcat错误消息.logcat错误消息如下.

01-23 16:47:39.613:E /数据库(1386):0x1392b8上的失败1(接近"existinfoTable":语法错误)准备'如果不存在则创建表infoinfo(_idinterger主键,sNametext不为空,wUrltext不为null, uNametext not null,pWordtext not null);'.

它所指的OnCreate方法如下.我不确定导致问题的语法错误.任何帮助,将不胜感激.

public void onCreate(SQLiteDatabase db) {
    String sqlDataStore = "create table if not exist" +
        TABLE_NAME_INFOTABLE + "("+ BaseColumns._ID + "interger primary key autoincrement,"
        + COLUMN_NAME_SITE + "text not null,"
        + COLUMN_NAME_ADDRESS + "text not null,"
        + COLUMN_NAME_USERNAME + "text not null,"
        + COLUMN_NAME_PASSWORD + "text not null),";
    db.execSQL(sqlDataStore);
}

Answer 1

从它的外观来看,你拼错了'整数',看起来你需要在'整数'之前,在'存在'之后需要一个空格(我认为它应该是'存在')和'''之前.所以....

String sqlDataStore = "create table if not exists " +
        TABLE_NAME_INFOTABLE + " ("+ BaseColumns._ID + " integer primary key autoincrement,"
                + COLUMN_NAME_SITE + "text not null,"
                + COLUMN_NAME_ADDRESS + "text not null,"
                + COLUMN_NAME_USERNAME + "text not null,"
                + COLUMN_NAME_PASSWORD + "text not null)";

你也可以省略','或';' 在声明的最后.