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Best way to test SQL queries [closed]
I have run into a problem wherein we keep having complex SQL queries go out with errors. Essentially this results in sending mail to the incorrect customers and other 'problems' like that.
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How to implement Android Pull-to-Refresh
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Finally, Google released an official version of the pull-to-refresh library!
It is called SwipeRefreshLayout, inside the support library, and the documentation is here:
Add SwipeRefreshLayout as a parent of view which will be trea...
Computed / calculated / virtual / derived columns in PostgreSQL
Does PostgreSQL support computed / calculated columns, like MS SQL Server? I can't find anything in the docs, but as this feature is included in many other DBMSs I thought I might be missing something.
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Why can't C# interfaces contain fields?
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Though many of the other answers are correct at the semantic level, I find it interesting to also approach these sorts of questions from the implementation details level.
An interface can be thought of as a collection of slots, ...
What is the difference between window, screen, and document in Javascript?
I see these terms used interchangeably as the global environment for the DOM. What is the difference (if there is one) and when should I use each one?
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window.onload vs
...e between the window.onload event and the onload event of the body tag? when do I use which and how should it be done correctly?
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Show the progress of a Python multiprocessing pool imap_unordered call?
I have a script that's successfully doing a multiprocessing Pool set of tasks with a imap_unordered() call:
9 Answers
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How to impose maxlength on textArea in HTML using JavaScript
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window.onload = function() {
var txts = document.getElementsByTagName('TEXTAREA');
for(var i = 0, l = txts.length; i < l; i++) {
if(/^[0-9]+$/.test(txts[i].getAttribute("maxlength"))) {
var func = function() {
var len = parseInt(this.getAttribute(...
Get the week start date and week end date from week number
I have a query that counts member's wedding dates in the database.
18 Answers
18
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What is the difference between single and double quotes in SQL?
What is the difference between single quotes and double quotes in SQL?
6 Answers
6
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