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ERROR: permission denied for sequence cities_id_seq using Postgres
...currval and nextval functions.
Also as pointed out by @epic_fil in the comments you can grant permissions to all the sequences in the schema with:
GRANT USAGE, SELECT ON ALL SEQUENCES IN SCHEMA public TO www;
share
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When is the finalize() method called in Java?
I need to know when the finalize() method is called in the JVM . I created a test class which writes into a file when the finalize() method is called by overriding it. It is not executed. Can anybody tell me the reason why it is not executing?
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What's the _ underscore representative of in Swift References?
...but I want to clarify a little bit more.
_ is used to modify external parameter name behavior for methods.
In Local and External Parameter Names for Methods section of the documentation, it says:
Swift gives the first parameter name in a method a local parameter name by default, and gives the ...
Nullable ToString()
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You are quite correct. Also in this question, the former solution is suggested while nobody actually notices ToString() already gives the correct answer.
Maybe the argument for the more verbose solution is readability: When you call ToString() on something that is supposed to ...
How to handle multiple heterogeneous inputs with Logstash?
...{
file {
type => "technical"
path => "/home/technical/log"
}
file {
type => "business"
path => "/home/business/log"
}
}
filter {
if [type] == "technical" {
# processing .......
}
if [type] == "busine...
Proxy with express.js
To avoid same-domain AJAX issues, I want my node.js web server to forward all requests from URL /api/BLABLA to another server, for example other_domain.com:3000/BLABLA , and return to user the same thing that this remote server returned, transparently.
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In Docker, what's the difference between a container and an image? [duplicate]
...ots of live containers. Containers are running (or stopped) instances of some image.
Start with the base image called 'ubuntu'. Let's run bash interactively within the ubuntu image and create a file. We'll use the -i and -t flags to give us an interactive bash shell.
$ docker run -i -t ubuntu /bi...
Do c++11 lambdas capture variables they don't use?
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Each variable expressly named in the capture list is captured. The default capture will only capture variables that are both (a) not expressly named in the capture list and (b) used in the body of the lambda expression. If a variable is not expressl...
How can I do division with variables in a Linux shell?
... I run commands in my shell as below, it returns an expr: non-integer argument error. Can someone please explain this to me?
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What is the best scripting language to embed in a C# desktop application? [closed]
...e thought we would just expose our object model to a scripting langauge. Time was when that meant VBA (which is still an option), but the managed code derivative VSTA (I think) seems to have withered on the vine.
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