插入数据库

Question

我编写了一个查询，将值插入Android中的数据库：

db.execSQL("CREATE TABLE " + TABLE_NAME + "( " + KEY_SITUATION_NAME
         + " TEXT NOT NULL, " + KEY_CATEGORY_NAME + " TEXT NOT NULL,"
         + KEY_LATTIUDE +" NOT NULL," + KEY_LONGITUDE + " NOT NULL," + " );");

但是，当我执行它时，会抛出错误。任何人都能指出它中的错误吗？

Answer 1

db.execSQL("CREATE TABLE " + TABLE_NAME + "( " + KEY_SITUATION_NAME
     + " TEXT NOT NULL, " + KEY_CATEGORY_NAME + " TEXT NOT NULL,"
     + KEY_LATTIUDE +" INTEGER NOT NULL," + KEY_LONGITUDE + " INTEGER NOT NULL" + " );");

为KEY_LATITUDE和KEY_LONGITUDE提供数据类型。

而且你最后还保留了（，）不需要的东西......

Answer 2

 db.execSQL("CREATE TABLE " + TABLE_NAME + "( " + KEY_SITUATION_NAME
             + " TEXT NOT NULL, " + KEY_CATEGORY_NAME + " TEXT NOT NULL,"
             + KEY_LATTIUDE +" NOT NULL," + KEY_LONGITUDE + " NOT NULL);");

Answer 3

正确的代码是：

db.execSQL("CREATE TABLE " + TABLE_NAME + "( " + KEY_SITUATION_NAME
        + " TEXT NOT NULL, " + KEY_CATEGORY_NAME + " TEXT NOT NULL," + KEY_LATTIUDE +" NOT NULL," + KEY_LONGITUDE + " NOT NULL," + " )");