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SQL “between” not inclusive
... is interpreted as midnight when the day starts.
One way to fix this is:
SELECT *
FROM Cases
WHERE cast(created_at as date) BETWEEN '2013-05-01' AND '2013-05-01'
Another way to fix it is with explicit binary comparisons
SELECT *
FROM Cases
WHERE created_at >= '2013-05-01' AND created_at <...
Convert string[] to int[] in one line of code using LINQ
...you would need the extra ToArray call to get an array:
int[] myInts = arr.Select(int.Parse).ToArray();
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Extract a dplyr tbl column as a vector
...2 3.62 3.54 4.11
A nice way to do this in v0.2 of dplyr:
iris2 %>% select(Species) %>% collect %>% .[[5]]
Or if you prefer:
iris2 %>% select(Species) %>% collect %>% .[["Species"]]
Or if your table isn't too big, simply...
iris2 %>% collect %>% .[["Species"]]
...
How to specify a editor to open crontab file? “export EDITOR=vi” does not work
... 13.04 installation) try:
There are a number of alternative ways:
1) Run select-editor
select-editor
2) Manually edit the file: ~/.selected_editor specifying your preferred editor. With this option you can specify editor parameters.
# Generated by /usr/bin/select-editor
SELECTED_EDITOR="/usr/...
Why does changing the returned variable in a finally block not change the return value?
...le s", you set s to refer to the inlined String, not altering the inherent char buffer of the s object to change to "override variable s".
You put a reference to the s on the stack to return to the calling code. Afterwards (when the finally block runs), altering the reference should not do anything ...
Xcode 6 Storyboard the wrong size?
...way at some point."
You probably haven't added the layout constraints.
Select your label, tap the layout constraints button on the bottom:
On that menu add width and height (it should NOT be the same as mine) by checking their checkbox and click add constraints. Then Control-drag your label t...
How to select the first element with a specific attribute using XPath
The XPath bookstore/book[1] selects the first book node under bookstore .
9 Answers
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Salting Your Password: Best Practices?
...mantics. Pick a different salt per password, a long salt, and include odd characters in it like symbols and ASCII codes: ©¤¡
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Insert picture into Excel cell [closed]
...ell as soon it comes
close to it.
If you have multiple images, you can select and insert all the images at once (as shown in step 4).
You can also resize images by selecting it and dragging the edges. In the case of logos or product images, you may want to keep the aspect ratio of the image int...
How to copy to clipboard in Vim?
...alent. For X11 systems,
though, they differ. For X11 systems,
* is the selection, and + is the cut buffer (like clipboard).
http://vim.wikia.com/wiki/Accessing_the_system_clipboard
* is probably what you want most of the time, so I use * because it functions as I expect it to in both enviro...