Question

我不久前发布了一个解决我遇到的语法错误的解决方案，并且有人设法帮助我，但它并没有完全解决我的问题，因为我的语法在创建我的表时仍然是错误的。我的应用程序运行时很奇怪，但我仍然收到编译错误。

以下是我收到的错误：

android.database.sqlite.SQLiteException：near“？”：语法错误（代码1）:,同时编译：create table Business_Trip_Expenditure（desc text primary key，Meals integer NOT NULL，Drinks integer NOT NULL，Travel integer NOT NULL ，Accommodation整数NOT NULL，其他整数NOT NULL，Receipt_Retained？real NOT NULL，Created_at text NOT NULL）;

这是我的代码：

public class MySQLiteHelper extends SQLiteOpenHelper {

    public static final String TABLE_NAME = "Business_Trip_Expenditure";
    //Column Names
    public static final String COLUMN_NAME = "desc";
    public static final String MEAL_COST ="Meals";
    public static final String DRINK_COST = "Drinks";
    public static final String TRAVEL_COST = "Travel";
    public static final String ACCO_COST = "Accommodation";
    public static final String OTHER_COST = "Other";
    public static final String HAS_RECEIPT = "Receipt_Retained";
    public static final String CREATED_AT = "Created_at";

    private static final String DATABASE_NAME = "trip.db";
    private static final int DATABASE_VERSION = 1;

    // Database creation sql statement
    private static final String DATABASE_CREATE = "create table "
            + TABLE_NAME + "( " + COLUMN_NAME + " text primary key ," + MEAL_COST + " integer NOT NULL ," + DRINK_COST + " integer NOT NULL ," + TRAVEL_COST + " integer NOT NULL ," + ACCO_COST + " integer NOT NULL ," + OTHER_COST + " integer NOT NULL ," + HAS_RECEIPT + " real NOT NULL ," + CREATED_AT + " text NOT NULL);";

    public MySQLiteHelper(Context context) {
        super(context, DATABASE_NAME, null, DATABASE_VERSION);
    }

    @Override
    public void onCreate(SQLiteDatabase database) {
        database.execSQL(DATABASE_CREATE);
    }

    @Override
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
        Log.w(MySQLiteHelper.class.getName(),
                "Upgrading database from version " + oldVersion + " to "
                        + newVersion + ", which will destroy all old data");
        db.execSQL("DROP TABLE IF EXISTS " + TABLE_NAME);
        onCreate(db);
    }
}

再说一遍，如果有人能帮我解决这个问题，那对我来说将是一个很大的帮助，非常感谢。对于垃圾邮件问题也很抱歉。

Answer 1

看看你的代码，这是一团糟。难怪你找不到任何错误。感受差异

<string name="createTableOfPrimes">CREATE TABLE prime ( _id INTEGER PRIMARY KEY AUTOINCREMENT, prime_no TEXT, date_time DATETIME DEFAULT CURRENT_TIMESTAMP );</string>

Answer 2

很难调试这样的查询。尝试使用一些字符串构建器工具来格式化您的查询。 Selectionbuilder或square短语是一些很好的选择：

https://github.com/square/phrase

https://developer.android.com/samples/BasicSyncAdapter/src/com.example.android.common/db/SelectionBuilder.html

Answer 3

尝试创建新的数据库表（更改数据库表名称），然后重试。这是我建议你查看代码的唯一方法。

Android SQLite表语法错误（代码1）再次

3 个答案: