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MySQL - why not index every field?
Recently I've learned the wonder of indexes, and performance has improved dramatically. However, with all I've learned, I can't seem to find the answer to this question.
...
How to Query an NTP Server using C#?
...on code (after testing and review of course).
– dodgy_coder
Sep 23 '14 at 5:33
2
Why I get LAN wi...
Least common multiple for 3 or more numbers
How do you calculate the least common multiple of multiple numbers?
31 Answers
31
...
A variable modified inside a while loop is not remembered
...ere: for line in $(echo -e $lines); do ... done
– dma_k
Jan 19 '16 at 20:20
@dma_k Thanks for your comment! This solut...
ASP.NET MVC: Custom Validation by DataAnnotation
...is.MinLength)
{
return new ValidationResult(this.FormatErrorMessage(validationContext.DisplayName));
}
return null;
}
}
and then you might have a view model and decorate one of its properties with it:
public class MyViewModel
{
[CombinedMinLength(20, "B...
How to import a Python class that is in a directory above?
...
This triggers error ValueError: attempted relative import beyond top-level package
– Carlo
Aug 23 '19 at 7:27
8
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What are CN, OU, DC in an LDAP search?
...ered Nov 27 '15 at 16:18
ROMANIA_engineerROMANIA_engineer
44.6k2323 gold badges184184 silver badges169169 bronze badges
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Converting String to Int with Swift
...
Update Answer for swift 2.0 :
toInt() method is given a error. Because,In Swift 2.x, the .toInt() function was removed from String. In replacement, Int now has an initializer that accepts a String:
let a:Int? = Int(firstText.text) // firstText is UITextField
let b:Int? = In...
Rebasing a branch including all its children
...nless auto-rebase is empty. Leave this here to catch programming
# errors, and for possible future -f option.
git for-each-ref --format="%(refname)" $REF_NAMESPACE |
while read ref; do
echo git update-ref -d $ref
done
else
git for-each-ref --fo...
JPA getSingleResult() or null
...null)
– Justin Rowe
Jan 9 '18 at 15:05
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