Question

我在创建表时遇到问题。错误说没有这样的表，即使我的查询是正确的，工作正常，我已经多次检查过。

public class DatabaseOperations extends SQLiteOpenHelper {
    public static final int database_version = 1;
    public String CREATE_QUERY = "CREATE TABLE"+TableData.TABLE_NAME+"("+TableData.USER_NAME+" TEXT, "+TableData.USER_PASS+" TEXT);";

    public DatabaseOperations(Context context) {
        super(context,TableData.DATABASE_NAME, null, database_version);
        Log.d("Database Operations", "Database Created");
    }

    @Override
    public void onCreate(SQLiteDatabase db) {
        db.execSQL(CREATE_QUERY);
        Log.d("Database Operations", "Table Created");
    }

    @Override
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {

    }
}

这里是Logcat：

08-08 18:00:19.008    2036-2043/com.example.fani.sqlitetest W/art﹕ Suspending all threads took: 12.494ms
08-08 18:00:19.667    2036-2036/com.example.fani.sqlitetest D/Database Operations﹕ Database Created
08-08 18:00:19.673    2036-2036/com.example.fani.sqlitetest E/SQLiteLog﹕ (1) no such table: users_info
08-08 18:00:19.679    2036-2036/com.example.fani.sqlitetest E/SQLiteDatabase﹕ Error inserting user_pass=fani user_name=farhan
    android.database.sqlite.SQLiteException: no such table: users_info (code 1): , while compiling: INSERT INTO users_info(user_pass,user_name) VALUES (?,?)

Answer 1

您的查询不对。 CREATE TABLE和表名称之间没有空格。

试试这个：

String CREATE_QUERY = "CREATE TABLE "+TableData.TABLE_NAME+" ("+TableData.USER_NAME+" TEXT, "+TableData.USER_PASS+" TEXT);";

Answer 2

将代码更改为：

private static final String CREATE_QUERY = "CREATE TABLE "+TableData.TABLE_NAME+" ("+TableData.USER_NAME+" TEXT, "+TableData.USER_PASS+" TEXT, "+")";

在Android中的SQLite中遇到表创建问题

2 个答案: