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How to select the last record of a table in SQL?
...he best we can do is something like
Sql Server
SELECT TOP 1 * FROM Table ORDER BY ID DESC
MySql
SELECT * FROM Table ORDER BY ID DESC LIMIT 1
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What is the difference between compare() and compareTo()?
...re less than, equal, or greater than.
If your class objects have a natural order, implement the Comparable<T> interface and define this method. All Java classes that have a natural ordering implement Comparable<T> - Example: String, wrapper classes, BigInteger
compare(a, b):
Comparator i...
For-each over an array in JavaScript
...k (not used above). The callback is called for each entry in the array, in order, skipping non-existent entries in sparse arrays. Although I only used one argument above, the callback is called with three: The value of each entry, the index of that entry, and a reference to the array you're iteratin...
How to find encoding of a file via script on Linux?
...ow. If you have 8 bit characters then the upper region characters exist in order encodings as well. Therefor you would have to use a dictionary to get a better guess which word it is and determine from there which letter it must be. Finally if you detect that it might be utf-8 than you are sure it i...
What is the maximum length of latitude and longitude? [closed]
...L) roughly follows the 180° longitude. A longitude with a positive value falls in the eastern hemisphere and negative value falls in the western hemisphere.
Decimal degrees precision
Six (6) decimal places precision in coordinates using decimal degrees notation is at a 10 cm (or 0.1 meter) resoluti...
What's the difference between a proxy server and a reverse proxy server? [closed]
...ccurate, but perhaps too terse.
I will try to add some examples.
First of all, the word "proxy" describes someone or something acting on behalf of someone else.
In the computer realm, we are talking about one server acting on the behalf of another computer.
For the purposes of accessibility, I wi...
How do I upgrade my ruby 1.9.2-p0 to the latest patch level using rvm?
...
Also, you can rvm list known in order to see the available ruby versions that you can upgrade to.
– James Chevalier
Apr 20 '12 at 13:47
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Uses of Action delegate in C# [closed]
...uter science behind it read this: http://en.wikipedia.org/wiki/Map_(higher-order_function).
Now if you are using C# 3 you can slick this up a bit with a lambda expression like so:
using System;
using System.Collections.Generic;
class Program
{
static void Main()
{
List<String&g...
What would be a good docker webdev workflow?
..., fig is now deprecated in favor of docker-compose
– allan.simon
Apr 10 '15 at 20:38
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Get top 1 row of each group
... cte AS
(
SELECT *,
ROW_NUMBER() OVER (PARTITION BY DocumentID ORDER BY DateCreated DESC) AS rn
FROM DocumentStatusLogs
)
SELECT *
FROM cte
WHERE rn = 1
If you expect 2 entries per day, then this will arbitrarily pick one. To get both entries for a day, use DENSE_RANK instead
As fo...