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Ignoring time zones altogether in Rails and PostgreSQL
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All timezone-aware dates and times are stored internally in UTC. They
are converted to local time in the zone specified by the TimeZone
configuration parameter before being displayed to the client.
Example (in psql):
db=# SELECT timestamptz '2012-03-05 20:00+03';
timestamptz
----------------...
Should you choose the MONEY or DECIMAL(x,y) datatypes in SQL Server?
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As someone currently converting a SQL Server database to Amazon Redshift, I can vouch that this is a genuine issue. Try to avoid data types that are bespoke to a particular database platform unless there are very sound business reasons to use the...
Undefined reference to static constexpr char[]
...h says :
A glvalue (3.10) of a non-function, non-array type T can be
converted to a prvalue.53 [...]
What is applied in the array-to-pointer conversion.
This wording of [basic.def.odr] was changed due to Defect Report 712 since some cases were not covered by this wording but these changes d...
How to return a file using Web API?
...e
{
// sendo file to client
byte[] bytes = Convert.FromBase64String(file.pdfBase64);
result = Request.CreateResponse(HttpStatusCode.OK);
result.Content = new ByteArrayContent(bytes);
result.Content.Headers.ContentDisposition = new...
Convert HashBytes to VarChar
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fn_varbintohexstr is not documented function. Use CONVERT(Char,@value,2)
– Cheburek
Nov 2 '11 at 11:55
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what is the difference between XSD and WSDL
...f the given XSD and make Web Service calls to fetch data from servicer and convert data returned into their suitable requirement and then display or publish data or information about the product on their website. A simple example would be FLIGHT Ticket booking. An airline will let third parties to u...
How can I convert an RGB image into grayscale in Python?
I'm trying to use matplotlib to read in an RGB image and convert it to grayscale.
12 Answers
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What optimizations can GHC be expected to perform reliably?
...worker/wrapper transformation is to do a tight loop on a simple structure, converting to and from that structure at the ends. For example, take this function, which calculates the factorial of a number.
factorial :: Int -> Int
factorial 0 = 1
factorial n = n * factorial (n - 1)
Using the defin...
Is it possible to create a File object from InputStream
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If you do not want to use other library, here is a simple function to convert InputStream to OutputStream.
public static void copyStream(InputStream in, OutputStream out) throws IOException {
byte[] buffer = new byte[1024];
int read;
while ((read = in.read(buffer)) != -1) {
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How to convert JSON to XML or XML to JSON?
I started to use Json.NET to convert a string in JSON format to object or viceversa. I am not sure in the Json.NET framework, is it possible to convert a string in JSON to XML format and viceversa?
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