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How to display request headers with command line curl
...rbose option shows the HTTP request headers, among other things. Here is some sample output:
$ curl -v http://google.com/
* About to connect() to google.com port 80 (#0)
* Trying 66.102.7.104... connected
* Connected to google.com (66.102.7.104) port 80 (#0)
> GET / HTTP/1.1
> User-Agent: c...
What is the best way to implement constants in Java? [closed]
...eptable, probably even the standard.
(public/private) static final TYPE NAME = VALUE;
where TYPE is the type, NAME is the name in all caps with underscores for spaces, and VALUE is the constant value;
I highly recommend NOT putting your constants in their own classes or interfaces.
As a side n...
How to remove a field from params[:something]
...
Rails 4/5 - edited answer
(see comments)
Since this question was written newer versions of Rails have added the extract! and except eg:
new_params = params.except[the one I wish to remove]
This is a safer way to 'grab' all the params you need into a copy ...
What is the meaning of the prefix N in T-SQL statements and when should I use it?
I have seen prefix N in some insert T-SQL queries. Many people have used N before inserting the value in a table.
4 Answe...
how to permit an array with strong parameters
...hrough associations which is not, as I remake it as a Rails 4 app, letting me save ids from the associated model in the Rails 4 version.
...
How to properly check if std::function is empty in C++11?
...lean values are required (such as the conditional expression in an if statement).
Besides, the notion of an empty lambda doesn't really make sense. Behind the scenes the compiler converts a lambda expression into a struct (or class) definition, with the variables you capture stored as data members ...
How do I create a random alpha-numeric string in C++?
I'd like to create a random string, consisting of alpha-numeric characters. I want to be able to be specify the length of the string.
...
T-SQL - function with default parameters
...is
SELECT dbo.CheckIfSFExists(23, default)
From Technet:
When a parameter of the function has a default value, the keyword
DEFAULT must be specified when the function is called in order to
retrieve the default value. This behaviour is different from using
parameters with default values ...
Progress indicator during pandas operations
I regularly perform pandas operations on data frames in excess of 15 million or so rows and I'd love to have access to a progress indicator for particular operations.
...
Search All Fields In All Tables For A Specific Value (Oracle)
...
Quote:
I've tried using this statement below
to find an appropriate column based on
what I think it should be named but it
returned no results.*
SELECT * from dba_objects WHERE
object_name like '%DTN%'
A column isn't an object. If you mean that you...