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How to get first character of a string in SQL?
... equivalent to SUBSTRING(colName, 1, 1).
I like LEFT, since I find it a bit cleaner, but really, there's no difference either way.
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Proxy with express.js
...ike this better than introducing an extra new "Proxy" module dependency. A bit verbose, but at least I know exactly what's going on. Cheers.
– user124114
May 3 '12 at 17:35
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Is there a way to keep Hudson / Jenkins configuration files in source control?
... the Job information of Jenkins in Git
I found the amount of commits a bit overwhelming, so I decided to control the commits manually and to save only the Job information and not the Jenkins configuration.
For this switch into your Jenkins jobs directory (Ubuntu: /var/lib/jenkins/jobs) and per...
How to determine if a string is a number with C++?
I've had quite a bit of trouble trying to write a function that checks if a string is a number. For a game I am writing I just need to check if a line from the file I am reading is a number or not (I will know if it is a parameter this way). I wrote the below function which I believe was working s...
Find commit by hash SHA in Git
...llows you to specify which information you want to show. It works a little bit like printf format, with the notable exception that you get a newline with %n instead of \n …
The placeholders are:
%an: author name
%ae: author email
%cn: committer name
%ce: committer email
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SQL-Server: Is there a SQL script that I can use to determine the progress of a SQL Server backup or
...e STATS in the BACKUP command if it is just a script.
Inside code it is a bit more complicated. In ODBC for example, you set SQL_ATTR_ASYNC_ENABLE and then look for SQL_STILL_EXECUTING return code, and do some repeated calls of SQLExecDirect until you get a SQL_SUCCESS (or eqiv).
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npm check and update package if needed
... Erik, can you kindly reply this related SO question, because it's still a bit confusing to me the difference between both commands, that is, npm update vs npm-check-updates?
– João Pimentel Ferreira
Jul 17 '19 at 6:22
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How do I enable/disable log levels in Android?
... file, the setprop method or with a System.setProperty? I'm having quite a bit of trouble getting a Log.isLoggable(TAG, VERBOSE) to return true for me.
– seanoshea
Feb 12 '11 at 20:16
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How to calculate the number of occurrence of a given character in each row of a column of strings?
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I don't think you need the regmatches bit. The function gregexpr returns a list with the indices of the matched occurrences for each element of x.
– savagent
Aug 26 '14 at 3:27
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Extract public/private key from PKCS12 file for later use in SSH-PK-Authentication
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This is possible with a bit of format conversion.
To extract the private key in a format openssh can use:
openssl pkcs12 -in pkcs12.pfx -nocerts -nodes | openssl rsa > id_rsa
To convert the private key to a public key:
openssl rsa -in id_rsa...