June 2018
Intermediate to advanced
596 pages
12h 39m
English
Content preview from Java EE 8 Development with Eclipse - Third Edition
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Getting courses from database tables using JDBC
We will now modify listCourses.jsp to display the courses that we have added using addCourse.jsp. However, we first need to add a method in CourseDAO to get all courses from the database.
Note that the Course table has a one-to-many relationship with Teacher. It stores the teacher ID in it. Further, the teacher ID is not a required field, so a course can exist in the Course table with null teacher_id. To get all the details of a course, we need to get the teacher for the course too. However, we cannot create a simple join in an SQL query to get the details of a course and of the teacher for each course, because a teacher may not have been set for the course. In such cases, we use the left outer ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.