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psql: FATAL: role “postgres” does not exist
...res | Superuser, Create role, Create DB | {}
If there is not at least one role with superuser, then you have a problem :-)
If there is one, you can use that to login. And looking at the output of your \l command: The permissions for user on the template0 and template1 databases are the ...
How exactly do Django content types work?
...ure) is deleted, all related (Comment) objects will also be deleted. Or at least as of the time of this writing.
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Collisions when generating UUIDs in JavaScript?
...e v4 UUIDs you need to use a cryptographically strong RNG that produces at least 122bit entropy per UUID generated.
– mlehmk
Sep 25 '15 at 12:28
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Split comma-separated strings in a column into separate rows
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I think the approaches are not comparable, at least not in all occasions, because the datatable approaches only produce tables with the "selected" columns, while dplyr produces a result with all the columns (including the ones not involved in the analysis and without hav...
Polymorphism in C++
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To exhibit polymorphism, f() must be able to operate with values of at least two distinct types (e.g. int and double), finding and executing distinct type-appropriate code.
C++ mechanisms for polymorphism
Explicit programmer-specified polymorphism
You can write f() such that it can operate...
Visual Studio 2010 IntelliSense doesn't select a default value - it just marks it
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For C++ at least,
Tools / Options / Text Editor / C/C++/ Advanced / IntelliSense
and change Member List Commit Aggressive to True
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how to remove shared preference while application uninstall in android
...restored preferences. To avoid that, just add this to your manifest (or at least to debug manifest):
<application ...
android:allowBackup="false">
...
</application>
Read this: http://developer.android.com/guide/topics/data/backup.html
You will also see that if you run Lint u...
How to do a PUT request with curl?
...ome) and an extension for it might be an overkill for some people imho. At least you could have provided an alternative for another more common (default installation) web browser like Firefox, where the HttpRequester does a similar job.
– rbaleksandar
Mar 2 '18...
Parser for C#
... While you're mentioning costs, note that Roslyn requires at least the Pro version of Visual Studio.
– kristianp
Nov 28 '12 at 9:01
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Using a Single Row configuration table in SQL Server database. Bad idea?
...e a table with a column for the information type and information value (at least). This way you avoid having to create new columns every time a new information is added.
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