I have created a database application using java swing. My program retrieves data from the database whenever I call the find class. The find class simply creates a statement, get the current database connection, then execute the statement. The returned values from the database will be placed on a ResultSet then will be displayed on a jTable. The problem is this:
I opened the find class, the result was displayed. Then I go to SQLyog or HeidiSQL (applications to manipulate the database), edit the values which was displayed on my program, then save. I went back to my program, close the find class then reopen it, I still get the previous data, not the edited one. Please help. Updates must be displayed once the find class is open. The only way for me to get the updated data is to close my entire program then reopen it, which I dont want to do.
EDIT:
This is what I tried. Basically, once my program creates a connection to the database the first time, I save it to another class which makes the connection always open(I assume). So whenever I want to create a query, I’ll just call the class to get the connection. What I did now is, after executing the query from the find class, I close the connection with the .close() function. It works, but do I really need to do close the connection every time? Again this is just a desktop application, not a web program.
I think you’re having a transaction isolation issue. Some drivers start an implicit transaction when it grabs the connection so you’re seeing a snapshot of the database at that time. You probably want a READ COMMITTED level which should show the database with all committed transactions applied.