December 2010
Intermediate to advanced
451 pages
11h 16m
English
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8-4. Writing a Dynamic Update Statement
Problem
Your application needs to execute an update statement, and you are not sure of the columns to be updated until runtime. For example, your application will modify employee records. You would like to construct an update statement that contains only the columns that have updated values.
Solution
Use native dynamic SQL to execute a SQL statement string that you prepare at application runtime. The procedure in this example accepts employee record values as input. In this scenario, an application form allows user entry for many of the fields that are contained within the EMPLOYEES table so that a particular employee record can be updated. The values that are changed on the form should be included in the ...
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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.