Azure数据库'master'中的CREATE TABLE权限被拒绝

Question

注意：，我可以删除数据库并可以通过外壳创建表，但是当我在Android Studio中运行查询以通过权限被拒绝错误创建表时。

连接可以成功建立数据库。

我正在使用Microsoft Azure的Stander S0层（免费试用）

这是我的代码：

公共类MainActivity扩展了AppCompatActivity {

Button add;
TextView errorlbl;
EditText name, address, pincode;
Connection connect;
Context context;
PreparedStatement preparedStatement;
Statement st;
String ipaddress, db, username, password;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate (savedInstanceState);
    setContentView (R.layout.activity_main);



    setContentView(R.layout.activity_main);
    add = (Button) findViewById(R.id.btnadd);
    errorlbl = (TextView) findViewById(R.id.lblerror);
    name = (EditText) findViewById(R.id.txtname);
    address = (EditText) findViewById(R.id.txtaddress);
    pincode = (EditText) findViewById(R.id.txtpincode);

    connect = ConnectionHelper();

    if (connect != null) {
        System.out.println ("Connet is NOT NULL");

        // Drop previous table of same name if one exists.
        Statement statement = null;
        try {
            statement = connect.createStatement ();
        } catch (SQLException e) {
            e.printStackTrace ();
        }
        try {
            statement.execute ("DROP TABLE IF EXISTS studentRecord;");
            System.out.println ("Finished dropping table (if existed).");
        } catch (SQLException e) {
            e.printStackTrace ();
        }
        // Create table.
        try {
            statement.execute ("CREATE TABLE studentRecord (Name VARCHAR(50), Address VARCHAR(50), Pincode INTEGER PRIMARY KEY);");
            System.out.println ("Created table.");
        } catch (SQLException e) {
            Log.e ("Database not created", e.getMessage ());
            e.printStackTrace ();
        }
    }
    else {
        System.out.println ("Connet is NULL");
    }

    add.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            try {
                st = connect.createStatement();
                preparedStatement = connect
                        .prepareStatement("insert into studentRecord (Name,Address,Pincode) values ('"
                                + name.getText().toString()
                                + "','"
                                + address.getText().toString()
                                + "','"
                                + pincode.getText().toString() + "')");
                preparedStatement.executeUpdate();
                errorlbl.setText("Data Added successfully");
            } catch (SQLException e) {
                errorlbl.setText(e.getMessage().toString());
            }
        }
    });

}

@SuppressLint("NewApi")
public Connection ConnectionHelper(){
    StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder()
            .permitAll ()
            .build();
    StrictMode.setThreadPolicy(policy);

    Connection connection = null;
    String ConnectionURL = null;
    try {
        Class.forName ("net.sourceforge.jtds.jdbc.Driver");
        ConnectionURL = "jdbc:jtds:sqlserver://andridserver.... this link work fine";

        connection = DriverManager.getConnection (ConnectionURL);

        System.out.println ("Connection successful");

    }
    catch (SQLException se){
        Log.e ("error 1: ", se.getMessage ());

    }
    catch (ClassNotFoundException cne){
        Log.e ("error 2 :", cne.getMessage ());
    }

    catch (Exception e){
        Log.e ("error 3 :", e.getMessage ());
    }
    return connection;
}

}