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Ordering by the order of values in a SQL IN() clause
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Two solutions that spring to mind:
order by case id when 123 then 1 when 456 then 2 else null end asc
order by instr(','||id||',',',123,456,') asc
(instr() is from Oracle; maybe you have locate() or charindex() or something like that)
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Install a Windows service using a Windows command prompt?
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If the directory's name has a space like c:\program files\abc 123, then you must use double quotes around the path.
installutil.exe "c:\program files\abc 123\myservice.exe"
It makes things much easier if you set up a bat file like following,
e.g. To install a service, create a "my...
Histogram Matplotlib
...ered Sep 4 '13 at 10:15
Matthias123Matthias123
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Converting A String To Hexadecimal In Java
I am trying to convert a string like "testing123" into hexadecimal form in java. I am currently using BlueJ.
21 Answers
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Fastest check if row exists in PostgreSQL
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How about simply:
select 1 from tbl where userid = 123 limit 1;
where 123 is the userid of the batch that you're about to insert.
The above query will return either an empty set or a single row, depending on whether there are records with the given userid.
If this turns o...
How do I run Asynchronous callbacks in Playground
...swered Nov 25 '16 at 10:58
bradd123bradd123
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Insert all values of a table into another table in SQL
...dited Feb 26 '14 at 1:12
hichris123
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answered Apr 21 '10 at 9:35
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If statement in aspx page
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<% If Request.QueryString("id_query_param") = 123 Then 'Add some VB comment here,
'which will not be visible in the rendered source code of the aspx page later %>
<!-- add some html content depending on -->
<!-- the conditi...
How do I fetch a single model in Backbone?
...ers with the hashbang in your URL like so, http://www.mydomain.com/#clocks/123 , but it should work even if you haven't yet.
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Call a Server-side Method on a Resource in a RESTful Way
...a RESTful ordering service where orders are at URIs like example.com/order/123.
Now say we want to cancel an order, how are we gonna do it? One may be tempted to think that is a "cancellation" "action" and design it as POST example.com/order/123?do=cancel.
That is not RESTful, as we talked above....