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ORA-12505, TNS:listener does not currently know of SID given in connect descriptor

...ws 7 64 bit OS and tried to execute JDBC program, then I got the following error: 28 Answers ...
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How to select a CRAN mirror in R

...ion. – Jesse Adelman Oct 8 '18 at 3:05 If I had wanted that I could have done it four hours ago myself. I prefer to le...
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Validate a username and password against Active Directory?

...true; strAuthenticatedBy = "Active Directory"; strError = "User has been authenticated by Active Directory."; } catch (Exception ex) { // Failed to authenticate. Most likely it is caused by unknown user // id or bad strPassword...
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What does the construct x = x || y mean?

...o if you call the method with no arguments it will use a default value of "Error". It's shorthand for writing: if (!title) { title = "Error"; } This kind of shorthand trick with boolean expressions is common in Perl too. With the expression: a OR b it evaluates to true if either a or b is t...
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The OutputPath property is not set for this project

...le my project from x86 debug mode in Visual Studio 2008. I am getting this error. When I looked at the property group of the project that complained, I see output path is set. ...
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How to erase the file contents of text file in Python?

...ecessary. – rmeador May 4 '10 at 22:05 7 if you have opened the file using "r+", use truncate(0) ...
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rsync error: failed to set times on “/foo/bar”: Operation not permitted

I'm getting a confusing error from rsync and the initial things I'm finding from web searches (as well as all the usual chmod'ing) are not solving it: ...
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Create an array with same element repeated multiple times

... upvoted. – jsalvata Sep 9 '19 at 8:05 add a comment  |  ...
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Is there a way to 'uniq' by column?

... 00:58:29.793000000,xx3.net,255.255.255.0 stack2@domain.com,2009-11-27 01:05:47.893000000,xx2.net,127.0.0.1 share | improve this answer | follow | ...
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Python: try statement in a single line

... Some people abuse the short-circuiting behavior of or to do this. This is error prone, so I never use it. c = None b = [1, 2] a = c or b Consider the following case: c = [] b = [1, 2] a = c or b In this case, a probably should be [], but it is [1, 2] because [] is false in a boolean context. ...