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The import javax.servlet can't be resolved [duplicate]
...ibraries tab
Click Add External JARs...
Browse to find servlet-api.jar and select it.
Click OK to update the build path.
Or, if you copy the JAR into your project:
Right-click the project, click Properties.
Choose Java Build Path.
Click Add JARs...
Find servlet-api.jar in your project and select...
Auto-expanding layout with Qt-Designer
...your widget/dialog/window (not the QVBoxLayout, but the parent widget) and select Lay Out -> Lay Out in a Grid from the bottom of the context-menu. The QVBoxLayout should now stretch to fit the window and will resize automatically when the entire window is resized.
...
Set keyboard caret position in html textbox
...tRange();
range.move('character', caretPos);
range.select();
}
else {
if(elem.selectionStart) {
elem.focus();
elem.setSelectionRange(caretPos, caretPos);
}
else
elem.focus();
...
How to see the CREATE VIEW code for a view in PostgreSQL?
...
select pg_get_viewdef('viewname', true)
A list of all those functions is available in the manual:
http://www.postgresql.org/docs/current/static/functions-info.html
...
List of Stored Procedures/Functions Mysql Command Line
...
For view procedure in name wise
select name from mysql.proc
below code used to list all the procedure and below code is give same result as show procedure status
select * from mysql.proc
...
Set cache-control for entire S3 bucket automatically (using bucket policies?)
...it can take some time.
Log in to AWS Management Console
Go into S3 bucket
Select all files by route
Choose "More" from the menu
Select "Change metadata"
In the "Key" field, select "Cache-Control" from the drop down menu
max-age=604800Enter (7 days) for Value
Press "Save" button
(thanks to @biplob ...
Code equivalent to the 'let' keyword in chained LINQ extension method calls
...
Let doesn't have its own operation; it piggy-backs off of Select. You can see this if you use "reflector" to pull apart an existing dll.
it will be something like:
var result = names
.Select(animalName => new { nameLength = animalName.Length, animalName})
.Where...
Heroku Postgres - terminate hung query (idle in transaction)
...'s not desirable or not an option ...)
Find the PID by running this sql:
SELECT pid , query, * from pg_stat_activity
WHERE state != 'idle' ORDER BY xact_start;
(The query may need mending dependent of the version of postgres - eventually, just select * from pg_stat_activity). You'll find the ...
Faster way to develop and test print stylesheets (avoid print preview every time)?
...P (Mac) or Ctrl+Shift+P (Windows, Linux))
2. Start typing Rendering and select Show Rendering.
3. For the Emulate CSS Media dropdown, select print.
UPDATE 29/02/2016
The DevTools docs have moved and the above link provides inaccurate information. The updated docs regarding Media type em...
SQL order string as number
...u can't do that then cast your column value to an integer explicitly with
select col from yourtable
order by cast(col as unsigned)
or implicitly for instance with a mathematical operation which forces a conversion to number
select col from yourtable
order by col + 0
BTW MySQL converts strings...