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PSQLException: current transaction is aborted, commands ignored until end of transaction block
...gnored as a failed SQL statement. You are welcome to fail SQL statements all you want and PostgreSQL won't stop you.
Stay being in a transaction, but when you detect that the first SQL has failed, either rollback/re-start or commit/restart the transaction. Then you can continue failing as many S...
How do I reverse an int array in Java?
...ster, but it confuses many programmers and any good compiler will automatically do that.
– Justin
Apr 7 '14 at 18:54
2
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How do I show/hide a UIBarButtonItem?
...
Save your button in a strong outlet (let's call it myButton) and do this to add/remove it:
// Get the reference to the current toolbar buttons
NSMutableArray *toolbarButtons = [self.toolbarItems mutableCopy];
// This is how you remove the button from the toolbar and ...
Sort a single String in Java
...
toCharArray followed by Arrays.sort followed by a String constructor call:
import java.util.Arrays;
public class Test
{
public static void main(String[] args)
{
String original = "edcba";
char[] chars = original.toCharArray();
Arrays.sort(chars);
String...
JQuery: How to call RESIZE event only once it's FINISHED resizing?
How do I call a function once the browser windows has FINISHED resizing?
8 Answers
8
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Safe (bounds-checked) array lookup in Swift, through optional bindings?
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WARNING! Checking arrays this way can be really expensive. The contains method will iterate through all indices thus making this an O(n). A better way is to use the index and count to check the bounds.
– Stefan Vasiljevic
May 7 '...
How to change variables value while debugging with LLDB in Xcode?
...es a crash, breakpoint
hit or signal.
Examples:
expr my_struct->a = my_array[3]
expr -f bin -- (index * 8) + 5
expr char c[] = "foo"; c[0]
IMPORTANT NOTE: Because this command takes 'raw' input, if you use any command options you must use ' -- ' between the...
How can I merge two hashes without overwritten duplicate keys in Ruby?
...lts.merge(options)
Or, if you're using Rails you can do:
options.reverse_merge!(defaults)
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Entity Framework VS LINQ to SQL VS ADO.NET with stored procedures? [closed]
...ity operations (CRUD) you will find just about equivalent performance with all three technologies. You do have to know how EF and Linq to SQL work in order to use them to their fullest. For high-volume operations like polling queries, you may want to have EF/L2S "compile" your entity query such th...
Difference between \b and \B in regex
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\b is a zero-width word boundary. Specifically:
Matches at the position between a word character (anything matched by \w) and a non-word character (anything matched by [^\w] or \W) as well as at the start and/or end of the string if the first and/or last characte...