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Can I add a UNIQUE constraint to a PostgreSQL table, after it's already created?
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select <column> from <table> group by 1 having count(*) > 1; will give a report on duplicated values.
– Jasen
Aug 26 '16 at 22:57
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Protecting Java Source Code From Being Accessed [closed]
...file looked the same to them: some programming statements and line breaks. Selecting the text carefully would show the whitespace. Each empty line would contain a certain number of spaces that's obviously not random or accidental. (eg 17) In practice, this method did the work for me because they cou...
How to limit UITableView row reordering to a section
...w within a section. e.g last row in a Section
// Check if we have selected the last row in section
if (sourceIndexPath.row < sourceIndexPath.length) {
return proposedDestinationIndexPath;
}
else {
return sourceIndexPath;
}
}
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How do you add an in-app purchase to an iOS application?
...he app you want do add the purchase to
Click the Features header, and then select In-App Purchases on the left
Click the + icon in the middle
For this tutorial, we are going to be adding an in-app purchase to remove ads, so choose non-consumable. If you were going to send a physical item to the user...
How to get Url Hash (#) from server side
...hash again) and/or perform other actions.
We used jQuery to simplify the selecting of the field, etc ... all in all it ends up being a few jQuery calls, one to save the value, and another to restore it.
Before submit:
$("form").submit(function() {
$("input", "#urlhash").val(window.location.has...
Remove padding or margins from Google Charts
...It looks like they documented it Oct. 2, 2015, here: archive.is/lwbQY#selection-2997.0-3011.1
– Dave Burton
Mar 31 '16 at 22:06
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Is there any difference between DECIMAL and NUMERIC in SQL Server?
... Increse that the vaue by 1
set @myvar = 123456.7
--Retrieve that value
select @myvar as myVariable
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background-size in shorthand background property (CSS3)
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Selected as answer for this part: It seems to be a case of "not supported by this browser yet" case.
– Mohsen
Oct 24 '11 at 21:39
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Finding all cycles in a directed graph
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This answer is much better than the answer selected. I struggled for quite a while trying to figure out how to get all simple cycles from the strongly connected components. It turns out this is non-trivial. The paper by Johnson contains a great algorithm, but is a lit...
Can the C# interactive window interact with my code?
...n use classes from your own project.
Just right click on your solution and select "Reset Interactive from Project".
If you need more information, here is the source:
Using the C# Interactive Window that comes with Roslyn – Part 2
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