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PostgreSQL: Show tables in PostgreSQL
...nninfo display information about current connection
\c [DBNAME] connect to new database, e.g., \c template1
\dt list tables of the public schema
\dt <schema-name>.* list tables of certain schema, e.g., \dt public.*
\dt *.* list tables of all schemas
Then you can run SQL statements, e.g., SELEC...
remove_if equivalent for std::map
...t SGI STL reference:
Map has the important property that
inserting a new element into a map
does not invalidate iterators that
point to existing elements. Erasing an
element from a map also does not
invalidate any iterators, except, of
course, for iterators that actually
point to t...
How to create Windows EventLog source from command line?
...ON /T INFORMATION /SO MYEVENTSOURCE /D "My first log"
This will create a new event source named MYEVENTSOURCE under APPLICATION event log as INFORMATION event type.
I think this utility is included only from XP onwards.
Further reading
Windows IT Pro: JSI Tip 5487. Windows XP includes the EventCr...
Django - limiting query results
...unction () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f6574003%2fdjango-limiting-query-results%23new-answer', 'question_page');
}
);
...
Swift: Convert enum value to String?
...ate"
}
so that I can do:
audience.toRaw() // "Public"
But, isn't this new enum definition redundant? Can I keep the initial enum definition and do something like:
audience.toString() // "Public"
share
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How do I get the current username in Windows PowerShell?
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51
I'd like to throw in the whoami command, which basically is a nice alias for doing %USERDOMAIN%...
What is a regular expression for a MAC Address?
...lcrowpilcrow
49.5k88 gold badges8181 silver badges125125 bronze badges
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How to clear the canvas for redrawing
...;
Resetting canvas.width resets all canvas state (e.g. transformations, lineWidth, strokeStyle, etc.), it is very slow (compared to clearRect), it doesn't work in all browsers, and it doesn't describe what you are actually trying to do.
Dealing with transformed coordinates
If you have modified th...
When should I use require() and when to use define()?
...s).
The require() function doesn't have to return the implementation of a new module.
Using define() you are asking something like "run the function that I am passing as a parameter and assign whatever returns to the ID that I am passing but, before, check that these dependencies are loaded".
Usi...
Attempted to read or write protected memory. This is often an indication that other memory is corrup
...
51
I have just faced this issue in VS 2013 .NET 4.5 with a MapInfo DLL. Turns out, the problem was...