Java 创建表的SQLITE错误

我越来越

>android.database.sqlite.SQLiteException: near "tb_quiz": syntax error (code 1):

一致

> @Override
public void onCreate(SQLiteDatabase db) {
    db.execSQL("CREATE table IF NOT EXISTS tb_quiz");
    Log.e("--------------", "file table created");
}

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请帮助某人…提前谢谢。

您不能创建空表。必须至少指定一列：

不能创建空表。必须至少指定一列：

表不能为空，请尝试按如下方式写入一些列：

CREATE TABLE IF NOT EXISTS table_name (
    column1 datatype,
    column2 datatype,
    column3 datatype,
   ....
);

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表不能为空，请尝试按如下方式写入某些列：

CREATE TABLE IF NOT EXISTS table_name (
    column1 datatype,
    column2 datatype,
    column3 datatype,
   ....
);

您应该提供表的模式

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您应该提供表的架构。

请使用以下查询创建表

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字符串CREATE\u CLASS\u TABLE=“CREATE TABLE CLASS\u TABLE（CLASS\u id INTEGER，CLASS\u name TEXT）”

请使用以下查询创建表 String CREATE\u CLASS\u TABLE=“CREATE TABLE CLASS\u TABLE（CLASS\u id INTEGER，CLASS\u name TEXT）”

试试这个

public class DataBaseHelper extends SQLiteOpenHelper {

    private static final String TAG = "DataBaseHelper";

    // Database Name
    private static final String DATABASE_NAME = "MYAPP";

    // Database Version
    private static final int DATABASE_VERSION = 1;

    private static final String TABLE_USER = "user_info";

    // Common column names TABLE_USER
    private static final String KEY_ID = "id";
    private static final String KEY_USERNAME = "u_name";
    private static final String KEY_PASSWORD = "u_pwd";

    private static final String CREATE_TABLE_USER = "CREATE TABLE IF NOT EXISTS " + TABLE_USER
            + "(" + KEY_ID + " INTEGER PRIMARY KEY AUTOINCREMENT,"
            + KEY_USERNAME + " TEXT,"
            + KEY_PASSWORD + " TEXT"
            + ")";

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

    @Override
    public void onCreate(SQLiteDatabase db) {
        // creating required tables
        db.execSQL(CREATE_TABLE_USER);
    }

    @Override
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
        // Drop older table if existed

        db.execSQL("DROP TABLE IF EXISTS " + CREATE_TABLE_USER);
        // Create tables again
        onCreate(db);
    }
}

试试这个

public class DataBaseHelper extends SQLiteOpenHelper {

    private static final String TAG = "DataBaseHelper";

    // Database Name
    private static final String DATABASE_NAME = "MYAPP";

    // Database Version
    private static final int DATABASE_VERSION = 1;

    private static final String TABLE_USER = "user_info";

    // Common column names TABLE_USER
    private static final String KEY_ID = "id";
    private static final String KEY_USERNAME = "u_name";
    private static final String KEY_PASSWORD = "u_pwd";

    private static final String CREATE_TABLE_USER = "CREATE TABLE IF NOT EXISTS " + TABLE_USER
            + "(" + KEY_ID + " INTEGER PRIMARY KEY AUTOINCREMENT,"
            + KEY_USERNAME + " TEXT,"
            + KEY_PASSWORD + " TEXT"
            + ")";

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

    @Override
    public void onCreate(SQLiteDatabase db) {
        // creating required tables
        db.execSQL(CREATE_TABLE_USER);
    }

    @Override
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
        // Drop older table if existed

        db.execSQL("DROP TABLE IF EXISTS " + CREATE_TABLE_USER);
        // Create tables again
        onCreate(db);
    }
}

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您还没有为该表给出任何定义。它不能为空。您还没有为表给出任何定义。它不可能是空的