Html table for updating database java
This tutorial is designed for beginners who have a basic understanding of web development and are looking to apply their knowledge using a My SQL database., which you have registered a connection for in the Net Beans IDE.In my first JDBC tutorial (How to connect to a JDBC database) I demonstrated how to connect your Java applications to standard SQL databases like My SQL, SQL Server, Oracle, SQLite, and others using the JDBC // create a Statement from the connection Statement statement = conn.create Statement(); // insert the data statement.execute Update("INSERT INTO Customers " "VALUES (1001, 'Simpson', 'Mr.', 'Springfield', 2001)"); object below.) If you're not familiar with SQL, note that you must insert your fields in the order in which your table is defined (Cnum, Lname, Salutation, City, and Snum).(Snum stands for Salesperson Number, which we'll use later to link this table to our Salesperson table.) Inserting the other three records is just as easy as inserting this record.
Essentially, it is the My SQL Connector/J JDBC Driver that enables communication between the Java code understood by the application server (the Glass Fish server), and any content in SQL, the language understood by the database server (My SQL).
Likewise, when a request is completed, the connection is not closed down, but returned to the pool.
The Glass Fish Server Open Source Edition contains Database Connection Pooling (DBCP) libraries that provide connection pooling functionality in a way that is transparent to you as a developer.
We can just re-use the statement.execute Update("INSERT INTO Customers " "VALUES (1002, 'Mc Beal', 'Ms.', 'Boston', 2004)"); statement.execute Update("INSERT INTO Customers " "VALUES (1003, 'Flinstone', 'Mr.', 'Bedrock', 2003)"); statement.execute Update("INSERT INTO Customers " "VALUES (1004, 'Cramden', 'Mr.', 'New York', 2001)"); As you can see, this is pretty easy (once you've seen how it’s done).
In a real application you’ll just replace the string constants we’ve used with variables that you obtain from (a) an end-user or (b) an input data source.