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Ryan Arment

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since Oct 03, 2011
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Recent posts by Ryan Arment

Ok, I got it all fixed up but I have one small problem left. When I execute it, it updates every tuple to the values of the last tuple. I think it has something to do with my executeUpdate() placement, but I'm not sure where I need to move it to to make it work....

So this is what I came up with, and it does not work. Apparently when you are updating a table, you can't be using more than one table so my join breaks it. Any ideas on how to fix it??

I had an as after the second table name, right before the ON statement. Now I need to figure out how to do the calculations.

I'm thinking about just going through the list for each thing I need to change and update it inside a loop.

And then going through it again with if statements to update the classification, etc...

I know this probably is not the best way to do it, but I'm not sure how else to do it...
Nevermind, I found my mistake in there. But my real question is how do I do my calculations and then update the DB. Is that all done inside the while loop?

Something like this?? It's giving me a syntax error on the ON part...

I need some help with JDBC. I am just starting out learning SQL and JDBC and I have having some trouble putting it all together. I have 2 tables, Student and Enrollment and I need to update them like it is the end of the semester. Add credit hours, update GPA and classification. But I am not sure how to make it work. Any help would be greatly appreciated!! I can get a resultset and print out the contents, but I'm not sure how to do a join and then modify the data within specifications (i.e. 30-45 credit hours is a sophmore, etc...) Here are the tables that I have to work with.

I am close to finishing this, but now I keep getting into an infinite loop. I am trying to debug but having no luck figuring out where my problem is. I am trying to do a standard quickSort and a quickSort using a stack. But I think the problem is with my partition method. It works on small arrays, up to like 20 but then it gets into an infinite loop. Any help would be greatly appreciated!

10 years ago