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postgresql COUNT(DISTINCT …) very slow
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You can use this:
SELECT COUNT(*) FROM (SELECT DISTINCT column_name FROM table_name) AS temp;
This is much faster than:
COUNT(DISTINCT column_name)
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Copy all the lines to clipboard
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on Mac
copy selected part: visually select text(type v or V in normal
mode) and type :w !pbcopy
copy the whole file :%w !pbcopy
past from the clipboard :r !pbpaste
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Compare dates in MySQL
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You can try below query,
select * from players
where
us_reg_date between '2000-07-05'
and
DATE_ADD('2011-11-10',INTERVAL 1 DAY)
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im...
How to delete a word and go into insert mode in Vim?
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:help objects in vim to read more about these sorts of selections.
– Aaron
Apr 22 '13 at 15:39
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Add custom icons to font awesome
...ons already, so the fab class is present on the elements (and the actually selected brand is added dinamycally to the css)
– Norbert Kardos
Jul 9 '18 at 6:29
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How to use Regular Expressions (Regex) in Microsoft Excel both in-cell and loops
...tep 1: Add VBA reference to "Microsoft VBScript Regular Expressions 5.5"
Select "Developer" tab (I don't have this tab what do I do?)
Select "Visual Basic" icon from 'Code' ribbon section
In "Microsoft Visual Basic for Applications" window select "Tools" from the top menu.
Select "References"
Chec...
JSON.net: how to deserialize without using the default constructor?
...d really help if it was possible to set another convention for constructor selection. For instance, I think the Unity container supports this. Then you could make it so that it always selected the constructor with most parameters instead of falling back to the default one. Any possibility such a ext...
jQuery Validate Plugin - How to create a simple custom rule?
...ame="' + element.name + '"]:checked').length > 0;
}, "Atleast 1 must be selected");
And you can also override the message of a rule (ie: Atleast 1 must be selected) by using the syntax data-msg-rulename="my new message".
NOTE
If you use the data-rule-rulename method then you will need to mak...
Razor MVC Populating Javascript array with Model Array
....SerializeObject(ViewBag.ComputeOfferings))),
desktopGrpComputeOfferingSelected: ko.observable(),
};
ko.applyBindings(desktopGrpViewModel);
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<select name="ComputeOffering" class="form-control valid" id="ComputeOffering" data-val="true"
data-bind="options: availableComputeOffering,
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How do you sort a dictionary by value?
..., 3);
var sortedDict = from entry in myDict orderby entry.Value ascending select entry;
This would also allow for great flexibility in that you can select the top 10, 20 10%, etc. Or if you are using your word frequency index for type-ahead, you could also include StartsWith clause as well.
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