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Liquibase lock - reasons?
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Sometimes if the update application is abruptly stopped, then the lock remains stuck.
Then running
UPDATE DATABASECHANGELOGLOCK SET LOCKED=0, LOCKGRANTED=null, LOCKEDBY=null where ID=1;
against the database helps.
Or you can simpl...
Turning multi-line string into single comma-separated
...se awk and sed:
awk -vORS=, '{ print $2 }' file.txt | sed 's/,$/\n/'
Or if you want to use a pipe:
echo "data" | awk -vORS=, '{ print $2 }' | sed 's/,$/\n/'
To break it down:
awk is great at handling data broken down into fields
-vORS=, sets the "output record separator" to ,, which is what ...
SQL WHERE condition is not equal to?
...ank Schmitt noted, you might want to be careful about the NULL values too. If you want to delete everything which is not 2(including the NULLs) then add OR id IS NULL to the WHERE clause.
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im...
How do I find the absolute url of an action in ASP.NET MVC?
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Interesting, so if you specify the protocol, the URL is absolute
– Casebash
Aug 2 '10 at 22:49
24
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Why is Java's boolean primitive size not defined?
The Java Virtual Machine Specification says that there is limited support for boolean primitive types.
7 Answers
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How do I explicitly instantiate a template function?
...to code formatting issues. See AnthonyHatchkins' answer for more details.
If you really want to instantiate (instead of specialize or something) the function, do this:
template <typename T> void func(T param) {} // definition
template void func<int>(int param); // explicit instantiati...
What is the string length of a GUID?
...ore about the intricacies of GUIDs here.
You will need two more in length if you want to store the braces.
Note: 36 is the string length with the dashes in between. They are actually 16-byte numbers.
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What are all the differences between src and data-src attributes?
What are differences and consequences (both good and bad) of using either data-src or src attribute of img tag? Can I achieve the same results using both? If so, when should be used each of them?
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TypeError: Illegal Invocation on console.log.apply
If you run this in the chrome console:
1 Answer
1
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What is the maximum amount of RAM an app can use?
...you the value for the device your code is running upon.
Are there any differences between the Android versions?
Yes, insofar as OS requirements have increased over the years, and devices have to adjust to match.
Are there differences concerning the manufacturer of the device?
Yes, insofa...