checking if the value is matched with data in sqlite

public void onActivityResult(int requestCode, int resultCode, Intent intent) {
    //retrieve scan result
    IntentResult scanningResult = IntentIntegrator.parseActivityResult(requestCode, resultCode, intent);
    //Intent Result object provides methods to retrieve the content of the scan
    //and the format of the data returned from it. 

    if (scanningResult != null) { //vital to check for null values. Only proceed if we have a valid result.
        //we have a result
        String scanContent = scanningResult.getContents(); // Retrieve the content as a string value
        String scanFormat = scanningResult.getFormatName(); //Retrieve the format name, also as a string.

        //Now your program has the format and content of the scanned data,
        //so you can do whatever you want with it. 

        formatTxt.setText("FORMAT: " + scanFormat);
        contentTxt.setText("CONTENT: " + scanContent);

        }
    else{
        Toast toast = Toast.makeText(getApplicationContext(), 
            "No scan data received!", Toast.LENGTH_SHORT);
        toast.show();
    }
    }

how do i compare value stored in scanContent with info(eg:std_num) stored in my database? if the one of the value matched, it will toast/print the related info eg:name

btw I used sqlite browser to create my database and table.