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MySQL SELECT WHERE datetime matches day (and not necessarily time)
...urn all records of a given day regardless of the time. Or in other words, if my table only contained the following 4 records, then only the 2nd and 3rd would be returned if I limit to 2012-12-25.
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Command line to remove an environment variable from the OS level configuration
...e default place setx puts it):
REG delete HKCU\Environment /F /V FOOBAR
If the variable is set in the system environment (e.g. if you originally set it with setx /M), as an administrator run:
REG delete "HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Environment" /F /V FOOBAR
Note: The ...
Split list into smaller lists (split in half)
...
A = [1,2,3,4,5,6]
B = A[:len(A)//2]
C = A[len(A)//2:]
If you want a function:
def split_list(a_list):
half = len(a_list)//2
return a_list[:half], a_list[half:]
A = [1,2,3,4,5,6]
B, C = split_list(A)
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How to use a wildcard in the classpath to add multiple jars? [duplicate]
...n the basename wildcard character *, which is considered equivalent to specifying a list of all the files in the directory with the extension .jar or .JAR. For example, the class path entry foo/* specifies all JAR files in the directory named foo. A classpath entry consisting simply of * expands to ...
How can I initialize an ArrayList with all zeroes in Java?
...r> list = new ArrayList<Integer>(Collections.nCopies(60, 0));
If you want to create a list with 60 different objects, you could use the Stream API with a Supplier as follows:
List<Person> persons = Stream.generate(Person::new)
.limit(60)
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When should I use File.separator and when File.pathSeparator?
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If you mean File.separator and File.pathSeparator then:
File.pathSeparator is used to separate individual file paths in a list of file paths. Consider on windows, the PATH environment variable. You use a ; to separate the f...
Warning: mysql_connect(): [2002] No such file or directory (trying to connect via unix:///tmp/mysql.
...Mac finds the required socket, even when it's looking in the wrong place!
If you have /tmp/mysql.sock but no /var/mysql/mysql.sock then...
cd /var
sudo mkdir mysql
sudo chmod 755 mysql
cd mysql
sudo ln -s /tmp/mysql.sock mysql.sock
If you have /var/mysql/mysql.sock but no /tmp/mysql.sock then.....
WPF: How to programmatically remove focus from a TextBox
...logical focus in your program. Either use the LostKeyboardFocus event or shift focus to another element (which shifts logical focus along with it) before clearing keyboard focus.
– Chirimorin
Feb 20 '17 at 9:48
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Facebook share button and custom text [closed]
...ank">
<span>
<img width="14" height="14" src="'icons/fb.gif" alt="Facebook" /> Facebook
</span>
</a>
share
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Where do I find the definition of size_t?
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@Lothar I think the only difference is that size_t may be a keyword, and otherwise has the same meaning.
– Paul Stelian
Mar 30 '18 at 16:56
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