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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...
When does invoking a member function on a null instance result in undefined behavior?
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Securing my REST API with OAuth while still allowing authentication via third party OAuth providers
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In Java, how do I convert a byte array to a string of hex digits while keeping leading zeros? [dupli
...s[j + 1])); } return result; }
– cn1h
Nov 3 '12 at 20:16
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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...
Insert all values of a table into another table in SQL
...dited Feb 26 '14 at 1:12
hichris123
9,5151212 gold badges5050 silver badges6666 bronze badges
answered Apr 21 '10 at 9:35
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If statement in aspx page
...erver">
<% 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...
Access event to call preventdefault from custom function originating from onclick attribute of tag
...reventDefault(); else event.returnValue = false;
window.location = 'http://www.domain.com/docs/thingy.pdf?cachebuster=' +
Math.round(new Date().getTime() / 1000);"
href="http://www.domain.com/docs/thingy.pdf">
If JavaScript is enabled, it opens the PDF with a cache busting query string, if no...