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What is the string concatenation operator in Oracle?
What is the string concatenation operator in Oracle SQL?
5 Answers
5
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Git: How to diff two different files in different branches?
I have two different files in different branches.
How can I diff them in one command?
5 Answers
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How to detect duplicate values in PHP array?
I am working with a one dimensional array in PHP. I would like to detect the presence of duplicate values, then count the number of duplicate values and out put the results. For example, given the following array:
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How to format a DateTime in PowerShell
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The same as you would in .NET:
$DateStr = $Date.ToString("yyyyMMdd")
Or:
$DateStr = '{0:yyyyMMdd}' -f $Date
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How do I set up DNS for an apex domain (no www) pointing to a Heroku app?
I already added a custom domain to my Heroku app and it works with www.domain.com .
4 Answers
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How do I correctly clean up a Python object?
...Python doesn't guarantee the existence of "global variables" (member data in this context?) when __del__() is invoked. If that is the case and this is the reason for the exception, how do I make sure the object destructs properly?
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Is it a bad practice to use negative margins in Android?
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In 2010, @RomainGuy (core Android engineer) stated that negative margins had unspecified behavior.
In 2011, @RomainGuy stated that you can use negative margins on LinearLayout and RelativeLayout.
In 2016, @RomainGuy stated ...
Read only the first line of a file?
How would you get only the first line of a file as a string with Python?
8 Answers
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Prevent screen rotation on Android
I have one of my activities which I would like to prevent from rotating because I'm starting an AsyncTask, and screen rotation makes it restart.
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How to get primary key column in Oracle?
..., cols.column_name, cols.position, cons.status, cons.owner
FROM all_constraints cons, all_cons_columns cols
WHERE cols.table_name = 'TABLE_NAME'
AND cons.constraint_type = 'P'
AND cons.constraint_name = cols.constraint_name
AND cons.owner = cols.owner
ORDER BY cols.table_name, cols.position;
Make ...