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Postgresql - unable to drop database because of some auto connections to DB
...CT rights, whatever was trying to auto-connect should no longer be able to do so.
You'll now be able to drop the DB.
This won't work if you're using superuser connections for normal operations, but if you're doing that you need to fix that problem first.
After you're done dropping the database, if ...
Adding a new value to an existing ENUM Type
... I wish to update that enum type to have an additional possible value. I don't want to delete any existing values, just add the new value. What is the simplest way to do this?
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find() with nil when there are no records
...
Yes, just do:
Challenge.find_by_id(10)
For Rails 4 and 5:
Challenge.find_by(id: 10)
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Using Predicate in Swift
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Example how to use in swift 2.0
let dataSource = [
"Domain CheckService",
"IMEI check",
"Compliant about service provider",
"Compliant about TRA",
"Enquires",
"Suggestion",
"SMS Spam",
"Poor Coverage",
"Help Salim"
]
let searchString = "Enq"
let...
C# switch statement limitations - why?
...Each case must be unique and evaluated
statically. The switch statement does
a constant time branch regardless of
how many cases you have. The if-else
statement evaluates each condition
until it finds one that is true.
In fact, the C# switch statement is not always a constant time br...
Java 8 Streams - collect vs reduce
When would you use collect() vs reduce() ? Does anyone have good, concrete examples of when it's definitely better to go one way or the other?
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How to tell which colorscheme a Vim session currently uses
...her a poorly made colour scheme or it's the default one.
A shinier way of doing this is (for recent versions of vim):
function! ShowColourSchemeName()
try
echo g:colors_name
catch /^Vim:E121/
echo "default
endtry
endfunction
Then do:
:call ShowColourSchemeName()
If...
How can I view the shared preferences file using Android Studio?
...e file where the info is actually stored on my phone. I found many ways to do this on Eclipse, but I'm debugging on Android Studio. My phone is rooted. I read that having root access is important to read these types of files. If there is no way, then I will look up how to access the info through my ...
How to get ELMAH to work with ASP.NET MVC [HandleError] attribute?
...on, however when I use the [HandleError] attribute on my controllers ELMAH doesn't log any errors when they occur.
8 Answer...
How do you specify the date format used when JAXB marshals xsd:dateTime?
... answered Nov 26 '12 at 17:04
bdoughanbdoughan
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