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Is having an 'OR' in an INNER JOIN condition a bad idea?
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For that UNION will be right. For more details read the following link union-instead-of-or
– Mitul Panchal
Jan 21 '19 at 12:14
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What's “tools:context” in Android layout files?
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oops . i didn't read the screenshot's text correctly .sorry . when hovering over what i've shown , it also says that it can be a fragment , but fragments don't have their theme written anywhere , no? anyway , i'm still not sure what is thi...
What generates the “text file busy” message in Unix?
... does it give an error if you try to write without unlink. Does Linux ever read the file more than once after the first exec call?
– Ciro Santilli 郝海东冠状病六四事件法轮功
Sep 22 '18 at 20:25
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#ifdef replacement in the Swift language
...t works; it doesn't seem to be recognized in a playground though.
You can read my original post here.
IMPORTANT NOTE: -DDEBUG=1 doesn't work. Only -D DEBUG works. Seems compiler is ignoring a flag with a specific value.
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How do I use a file grep comparison inside a bash if/else statement?
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just use bash
while read -r line
do
case "$line" in
*MYSQL_ROLE=master*)
echo "do your stuff";;
*) echo "doesn't exist";;
esac
done <"/etc/aws/hosts.conf"
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How to access test resources in Scala?
...ust a normal Scala IO object so you can do anything you want with it, like reading the contents and using it for test data.
There are other methods to get the resource as well (for example as a stream). For more information look at the getResource methods on the Java Docs: Class.
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Why is “if not someobj:” better than “if someobj == None:” in Python?
...irst test, Python try to convert the object to a bool value if it is not already one. Roughly, we are asking the object : are you meaningful or not ? This is done using the following algorithm :
If the object has a __nonzero__ special method (as do numeric built-ins, int and float), it calls this ...
Fetch the row which has the Max value for a column
...-OCT-2011", then I want to get "22-OCT-2011". Been scratching my head and reading this snippet for a while now...
– Cory Kendall
Mar 17 '12 at 8:18
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WPF: How to display an image at its original size?
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@KyleDelaney Have you read the article I linked in the answer?
– Paya
Apr 19 '17 at 18:52
1
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Validate uniqueness of multiple columns
... You probably want to add a custom error msg like , :message => ' has already this friend.'
– laffuste
May 15 '14 at 9:34
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