Re: JDBC update changes to JTable.

So far what I have been wondering: 

• I have somehow finished the beginner level of JTable step by step following the official tutorial. 
• I know how to use JDBC to query/update/ delete PostgreSQL database records.
• Add a button to update and insert and delete database table.

After using select syntax to populate JTable, I wonder how to update changes made in JTable to the database. 

After browsing StackOverFlow, I have some basic idea: 

• Step 1: editing
• step 2: stop editing;
• Step 3: make the update sync with the database.

Step1 is about adjusting the DefaultTableModel by calling related methods as per requirement. Related link: DefaultTableModel (Java Platform SE 7 ) (oracle.com)

Step2: I copied from  StackOverFlow ( https://stackoverflow.com/questions/12823475/what-is-the-best-way-to-listen-for-changes-in-jtable-cell-values-and-update-data )

Step3: I  don't know how to do it.  So I asked the question on StackOverFlow (java - Update changes In JTable to database? - Stack Overflow) If you guys know how to do it, please help me. 

I know it's less about JDBC,  more about Java. Anyway.................