Updating table with integer values using jdbc in servlets sex dating in blair oklahoma
class, and a sample My SQL database table we can work with.The first thing we need for our Java UPDATE example is a sample My SQL database table. Http Servlet Response; @Web Servlet("/Registration Servlet") public class Registration Servlet extends Http Servlet ) Prepared Statement update User Info = (Prepared Statement) conn .prepare Statement("insert into user Info ( User Name, user PW) values(? )"); //since first column is AI, no need to include that for updates update User String(1, n User); update User String(2, n PW); update User Info.execute Update(); now my data is being saved in the user Info Db and serial# is being auto incremented.
Other than that, this My SQL database table is relatively normal, though it is greatly simplified.
To keep it simple — but also show several different data types — I've created the following My SQL database table: create table users ( id int unsigned auto_increment not null, first_name varchar(32) not null, last_name varchar(32) not null, date_created timestamp default now(), is_admin boolean, num_points int, primary key (id) ); -- insert some sample records insert into users (first_name, last_name) values ('Fred', 'Flinstone'); insert into users (first_name, last_name) values ('Barney', 'Rubble'); A few of these fields are a little contrived, but I wanted to show several different data types in one table, so this is what I came up with.
In particular, the field "num_points" is a little unusual.
Given that My SQL database table design, let's assume that we just want to update one record in this table.
To do so, we just need to follow these steps: I've tried to document the following Java My SQL UPDATE example so you can see these steps.
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This chapter explains the use of Java Database Connectivity for database access in Java.