Question

I am trying to insert these values into a database, however, the INSERT and WHILE clause are incompatible with each other. Does anybody have any ideas how I could achieve my desired results in a different manner.

public boolean updateAns()
{
    boolean success=true;
    DBController db=new DBController();
    db.setUp("IT Innovation Project");
    String sql="INSERT INTO kioskSurveyAns(survey_qn1,survey_qn2,survey_qn3) VALUES('"+radioText+"','"+radioText1+"','"+radioText2+"')SELECT survey_qn1,survey_qn2,survey3 FROM kioskSurveyAns WHERE survey_nric='"+nric+"'";

    if (db.updateRequest(sql) == 1)
    success = true;
    db.terminate();
    return success;
}

Answer 1

If you are using INSERT INTO...SELECT statement, there should be no VALUES keyword on it because the value that will be inserted came from the SELECT statement. eg

INSERT INTO tableName (col1, col2)
SELECT col1, col2
FROM tableX
WHERE....

but looking back on your query, you want to UPDATE the rows based on the values of the controls. right?

UPDATE kioskSurveyAns
SET    survey_qn1 = 'rad1',
       survey_qn2 = 'rad2',
       survey_qn3 = 'rad3'
WHERE  survey_nric= = 'richere'

As a sidenote, the statement is vulnerable with SQL Injection. Please do parameterized your query using PreparedStatements

• PreparedStatement