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Postgres: SQL to list table foreign keys
...
psql does this, and if you start psql with:
psql -E
it will show you exactly what query is executed. In the case of finding foreign keys, it's:
SELECT conname,
pg_catalog.pg_get_constraintdef(r.oid, true) as condef
FROM pg_catalog.pg_constraint r...
iPhone Safari Web App opens links in new window
...ample:
{
"name": "Test",
"short_name": "Test",
"lang": "en-US",
"start_url": "/",
"scope": "/",
...
}
You can also read more about it here. I also recommend using the generator which will provide this functionality.
If you specify the scope, everything works as expected similar ...
What's the difference between unit tests and integration tests? [duplicate]
... be replaced by false objects. Mocks, stubs .. The tests execution thread starts and ends within the smallest testable unit.
When false objects are replaced by real objects and tests execution thread crosses into other testable units, you have an integration test
...
Installing a local module using npm?
...tive path of package1. npm i not installing the package when relative path starts with "file:../../package1" , working when it is ''../../package1", does adding file in the begining means anything else?
– Dip686
Jan 31 at 7:33
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How to delete multiple files at once in Bash on Linux?
...n feed the output of grep to rm -f. For example, if some of the file names start with "abc.log" and some with "ABC.log", grep lets you do a case-insensitive match:
$ rm -f $(ls | grep -i '^abc\.log\.')
This will cause problems if any of the file names contain funny characters, including spaces. Be ...
How to get awaitable Thread.Sleep?
...
The other answers suggesting starting a new thread are a bad idea - there's no need to do that at all. Part of the point of async/await is to reduce the number of threads your application needs.
You should instead use Task.Delay which doesn't require a ...
How to determine a Python variable's type?
...t;> type(one).__name__
'int'
Don't use __class__
In Python, names that start with underscores are semantically not a part of the public API, and it's a best practice for users to avoid using them. (Except when absolutely necessary.)
Since type gives us the class of the object, we should avoid ge...
How to make links in a TextView clickable?
...neral, encode all the chevrons in the string like that. BTW, the link must start with http://
Then (as suggested here) set this option on your TextView:
android:linksClickable="true"
Finally, in code, do:
((TextView) findViewById(R.id.your_text_view)).setMovementMethod(LinkMovementMethod.getIn...
How to build for armv6 and armv7 architectures with iOS 5
...pabilities' (under the info tab) had armv7 in it. I just deleted it and it started running perfectly
– Erpheus
Apr 21 '12 at 16:33
1
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When do we need curly braces around shell variables?
...py=$path
which is definitely more readable.
Since a variable name can't start with a digit, shell doesn't need {} around numbered variables (like $1, $2 etc.) unless such expansion is followed by a digit. That's too subtle and it does make to explicitly use {} in such contexts:
set app # s...