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How do you find the disk size of a Postgres / PostgreSQL table and its indexes
... ELSE 'N'
END AS UNIQUE,
idx_scan AS number_of_scans,
idx_tup_read AS tuples_read,
idx_tup_fetch AS tuples_fetched
FROM pg_tables t
LEFT OUTER JOIN pg_class c ON t.tablename=c.relname
LEFT OUTER JOIN
( SELECT c.relname AS ctablename, ipg.relname AS indexname, x.indnatts AS numbe...
Scope of sessionStorage and localStorage
I read some documentation on sessionStorage and localStorage, but I don't understand what the scope is: the domain, a specific page?
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How to benchmark efficiency of PHP script
... a great tool for production and it's safe to run it there (as long as you read the instructions). The results of any one single page load aren't going to be as relevant as seeing how your code performs while the server is getting hammered to do a million other things as well and resources become sc...
Naming Classes - How to avoid calling everything a “Manager”? [closed]
A long time ago I have read an article (I believe a blog entry) which put me on the "right" track on naming objects: Be very very scrupulous about naming things in your program.
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Objective-C declared @property attributes (nonatomic, copy, strong, weak)
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Nonatomic
Nonatomic will not generate threadsafe routines thru @synthesize accessors. atomic will generate threadsafe accessors so atomic variables are threadsafe (can be accessed from multiple threads without botching of data)
Copy
copy is required when the object...
What is the difference between const and readonly in C#?
What is the difference between const and readonly in C#?
31 Answers
31
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How can I use threading in Python?
I am trying to understand threading in Python. I've looked at the documentation and examples, but quite frankly, many examples are overly sophisticated and I'm having trouble understanding them.
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How can i tell if an object has a key value observer attached
...avior, however, as I haven't seen it documented. Also, I don't know how to read observationInfo to get specific observers.
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Only using @JsonIgnore during serialization, but not deserialization
...r the password on your object.
More recent versions of Jackson have added READ_ONLY and WRITE_ONLY annotation arguments for JsonProperty. So you could also do something like:
@JsonProperty(access = Access.WRITE_ONLY)
private String password;
Docs can be found here.
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How to run Unix shell script from Java code?
...treamHandler method to capture output in OutputStream. Please refer this thread for more info : How can I capture the output of a command...
– Not a bug
Oct 13 '15 at 7:58
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