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GROUP_CONCAT comma separator - MySQL
I have a query where I am using GROUP_CONCAT and a custom separator as my results may contain commas: '----'
3 Answers
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how to write setTimeout with params by Coffeescript
...ers, the performance drawback is insignificant unless you're doing it thousands of times per second. (And what are you doing setting thousands of timeouts per second, anyway?)
Of course, a more straightforward approach is to simply name your callback, which tends to produce more readable code anywa...
Nginx 403 error: directory index of [folder] is forbidden
I have 3 domain names and am trying to host all 3 sites on one server (a Digital Ocean droplet) using Nginx.
19 Answers
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What is the easiest/best/most correct way to iterate through the characters of a string in Java?
StringTokenizer ? Convert the String to a char[] and iterate over that? Something else?
15 Answers
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How can I do time/hours arithmetic in Google Spreadsheet?
...en the number being returned by your formula is being formatted as a time, and you want it formatted as a plain number, change the format of the cell to a plain number format: click the cell and then click Format, Number, Normal.
Time values in Google spreadsheet are represented as days and parts o...
Measure the time it takes to execute a t-sql query
...asuring the "elapsed time" between events is to just grab the current date and time.
In SQL Server Management Studio
SELECT GETDATE();
SELECT /* query one */ 1 ;
SELECT GETDATE();
SELECT /* query two */ 2 ;
SELECT GETDATE();
To calculate elapsed times, you could grab those date values into var...
In java how to get substring from a string till a character c?
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look at String.indexOf and String.substring.
Make sure you check for -1 for indexOf.
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What was the strangest coding standard rule that you were forced to follow? [closed]
...this question I got almost always a definite yes you should have coding standards.
112 Answers
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Check if list is empty in C# [closed]
...d from a database. I need to display an error message if the list is empty and display a grid view otherwise.
8 Answers
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Postgresql: Conditionally unique constraint
...le slower, the advantage of the exclude solution is that it is deferrable (and by default defers until the end of the statement). In contrast, the accepted unique index solution cannot be deferred (and is checked after every row change). So a bulk update is often not possible because steps during th...