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How to group time by hour or by 10 minutes
...ind of guy)
In Oracle:
SELECT timeslot, COUNT(*)
FROM
(
SELECT to_char(l_time, 'YYYY-MM-DD hh24') timeslot
FROM
(
SELECT l_time FROM mytab
)
) GROUP BY timeslot
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How to count certain elements in array?
...gt; 1}
> counts.remove('a')
Uncaught tried to remove element a of type string from Multiset, but does not exist in Multiset (count is 0 and cannot go negative)
sidenote: Though, if you still wanted the functional-programming way (or a throwaway one-liner without overriding Array.prototype), yo...
remove legend title in ggplot
...
This replaces the title with an empty string and therefore causes extra space between the label and the legend box, which would be visible only if the legend had a box or background of a color different from where it is positioned. So it's alright for a quick and...
Checking for NULL pointer in C/C++ [closed]
...ad and more explicit. I see where they're coming from, I just disagree the extra stuff makes it any easier. (I hate the macro, so I'm biased.) Up to you.
I disagree with your argument. If you're not getting warnings for assignments in a conditional, you need to turn your warning levels up. Simple a...
Five equal columns in twitter bootstrap
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Update 2019
Bootstrap 4.1+
Here are 5 equal, full-width columns (no extra CSS or SASS) using the auto-layout grid:
<div class="container-fluid">
<div class="row">
<div class="col">1</div>
<div class="col">2</div>
<div class="...
Stash just a single file
...later simply rebase and/or merge the tmpbranch. It really isn't that much extra work when you need to do more careful tracking than stash will allow.
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What is the difference among col-lg-*, col-md-* and col-sm-* in Bootstrap?
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Bootstrap 3
The Bootstrap 3 grid comes in 4 tiers (or "breakpoints")...
Extra small (for smartphones .col-xs-*)
Small (for tablets .col-sm-*)
Medium (for laptops .col-md-*)
Large (for laptops/desktops .col-lg-*).
These grid sizes enable you to control grid behavior on different widths. The diffe...
When should I use the “strictfp” keyword in java?
...latform. If you don't use strictfp, the JVM implementation is free to use extra precision where available.
From the JLS:
Within an FP-strict expression, all
intermediate values must be elements
of the float value set or the double
value set, implying that the results
of all FP-strict e...
Insert results of a stored procedure into a temporary table
... You don't need a linked server, but you would need to get the connection string right...and also, specify the full path to the stored procedure including the database name and the sp's owner.
– MartW
Aug 11 '09 at 12:30
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Difference between clustered and nonclustered index [duplicate]
... every row in your table. This can be anything, really - an INT, a GUID, a string - pick what makes most sense for your scenario.
2) the clustering key (the column or columns that define the "clustered index" on the table) - this is a physical storage-related thing, and here, a small, stable, ever-...