使用JComboBox从MySQL数据库动态选择信息

Question

It was a little difficult to explain the problem properly in the title, but this is what I am struggling with;

I am making a program that will hopefully predict the result between two football teams using their previous results. The results will be stored in a mysql database. There are 21 tables in the database, 1 is the results of all matches in the past 3 years, and the other 20 are for each team containing various information of that team.

My problem is connecting to the table which contains results of all matches using two jcombobox and retrieving information for matches between two specific teams.

For example, this is the code for the two jcombobox.

private String[] homeTeam = { "Arsenal", "Aston Villa", "Cardiff", "Chelsea", "Crystal Palace", "Everton", "Fulham",
"Hull", "Liverpool", "Manchester City", "Manchester United", "Newcastle", "Norwich", "Southampton", "Stoke", "Sunderland",
"Swansea", "Tottenham", "West Brom", "West Ham"};                                                             
private JComboBox box1 = new JComboBox(homeTeam);

private String[] awayTeam = { "Arsenal", "Aston Villa", "Cardiff", "Chelsea", "Crystal Palace", "Everton", "Fulham",
"Hull", "Liverpool", "Manchester City", "Manchester United", "Newcastle", "Norwich", "Southampton", "Stoke", "Sunderland",
"Swansea", "Tottenham", "West Brom", "West Ham" };                                                             
private JComboBox box2 = new JComboBox(awayTeam);

So, say I want to find the results if the home team was Cardiff, and the away team was Hull, I know what sql query I would need to write to do that. But my problem is there are so many different possible combinations of teams that I would end up needing to write hundreds of queries.

Is it possible to do this dynamically, rather than writing a query for every possible combination of match?

Thanks

Answer 1

Use a PreparedStatement. You have to write one Statement and the values can be set dynamically out of the JComboBoxes.