I\'m fairly new to iOS/Cocoa and I have a very fundamental question about core data. I was looking over the internet to find a appropriate answer/solution but I wasn\'t able to.
Wanting to write a schema that tests to see if the combination of an attribute + the parent node attribute is unique.
I\'ve been challenged with a mathematics problem. Given ten numbers (in this case, numbers from 1 to 10), how many unique combinations of six numbers are there? The short answer is 210. However, I wou
Hi I have a function that will generate a random string which works fine. What I would like to do is store that string as the pr开发者_如何学Goimary key in my database. The problem is that I first nee
The problem: In one of my Android apps, users should be allowed to make changes to text data on my server (via HTTP request) without being required to login or sign up.
Assuming two columns in a MySQL (MyISAM) table: title VARCHAR(1500) url VARCHAR(155) I want to create a composite unique index on both columns. I know of the limiting length feature for too long co
I have a java code that sends data to a web service, and a portlet that uses that data. Data sent by java agent gets placed in TMP table, and merge procedure merges it into MAIN table used by portle
I have been trying to use xs:unique with no success so far. I have the following simple schema: <?xml version=\"1.0\" encoding=\"utf-8\"?>
Is it possible to create a ListView where each row in the list is a unique layout (you do not know the layout structure because it is dynamically generated at run time)?
Suppose I have a table: CREATE TABLE `ml_vendor_refs` ( `id` int(11) NOT NULL AUTO_INCREMENT, `ml_id` int(11) NOT NULL,
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