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The superclass “javax.servlet.http.HttpServlet” was not found on the Java Build Path [duplicate]
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Add a runtime first and select project properties. Then check the server name from the 'Runtimes' tab as shown in the image.
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In SQL, what's the difference between count(column) and count(*)?
...a values(null,1)
insert #bla values(1,null)
insert #bla values(null,null)
select count(*),count(id),count(id2)
from #bla
results
7 3 2
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Python loop counter in a for loop [duplicate]
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Use enumerate() like so:
def draw_menu(options, selected_index):
for counter, option in enumerate(options):
if counter == selected_index:
print " [*] %s" % option
else:
print " [ ] %s" % option
options = ['Option 0', 'Option...
Eclipse: Can you format code on save?
...ces, choose Java --> Editor --> Save Actions. Check the Perform the selected actions on save, and check the Format source code box.
This may or may not be available in previous versions of Eclipse. I know it works in:
Version: 3.3.3.r33x_r20080129-_19UEl7Ezk_gXF1kouft<br>
Build id: M...
SQL Server 2008: how do I grant privileges to a username?
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If you need to be more granular, you can use the GRANT command:
GRANT SELECT, INSERT, UPDATE ON dbo.YourTable TO YourUserName
GRANT SELECT, INSERT ON dbo.YourTable2 TO YourUserName
GRANT SELECT, DELETE ON dbo.YourTable3 TO YourUserName
and so forth - you can granularly give SELECT, INSERT, UP...
How to retrieve the current version of a MySQL database management system (DBMS)?
... and Windows.
When connected to a MySQL server with a client you can use
select version()
or
select @@version
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How to fix Python indentation
... do this:
$ # see what changes it would make
$ autopep8 path/to/file.py --select=E101,E121 --diff
$ # make these changes
$ autopep8 path/to/file.py --select=E101,E121 --in-place
Note: E101 and E121 are pep8 indentation (I think you can simply pass --select=E1 to fix all indentation related issue...
Beautiful Soup and extracting a div and its contents by ID
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Beautiful Soup 4 supports most CSS selectors with the .select() method, therefore you can use an id selector such as:
soup.select('#articlebody')
If you need to specify the element's type, you can add a type selector before the id selector:
soup.select('di...
How can I select an element by name with jQuery?
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You can use the jQuery attribute selector:
$('td[name ="tcol1"]') // matches exactly 'tcol1'
$('td[name^="tcol"]' ) // matches those that begin with 'tcol'
$('td[name$="tcol"]' ) // matches those that end with 'tcol'
$('td[name*="tcol"]' ) // matche...
Modern way to filter STL container?
...turns the filtered result. eg:
template<typename T>
vector<T> select_T(const vector<T>& inVec, function<bool(const T&)> predicate)
{
vector<T> result;
copy_if(inVec.begin(), inVec.end(), back_inserter(result), predicate);
return result;
}
to use - givin...