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Difference between EXISTS and IN in SQL?
...ve a static list to pass:
select * from [table]
where [field] in (1, 2, 3)
When you have a table in an in statement it makes more sense to use a join, but mostly it shouldn't matter. The query optimiser should return the same plan either way. In some implementations (mostly older, such as Micro...
Why dict.get(key) instead of dict[key]?
...
Jean-François Corbett
33.6k2525 gold badges124124 silver badges172172 bronze badges
answered Jun 14 '12 at 21:12
unutbuunut...
How to manually deprecate members
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273
You can use the Available tag, for example :
@available(*, deprecated)
func myFunc() {
// ...
Deleting array elements in JavaScript - delete vs splice
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1713
delete will delete the object property, but will not reindex the array or update its length. Thi...
How to measure time taken between lines of code in python?
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If you want to measure CPU time, can use time.process_time() for Python 3.3 and above:
import time
start = time.process_time()
# your code here
print(time.process_time() - start)
First call turns the timer on, and second call tells you how many seconds have elapsed.
There is also a functi...
What is “lifting” in Scala?
...gt;
scala> res1(-1)
res2: Option[Boolean] = None
scala> res1(1)
res3: Option[Boolean] = Some(false)
Methods
You can "lift" a method invocation into a function. This is called eta-expansion (thanks to Ben James for this). So for example:
scala> def times2(i: Int) = i * 2
times2: (i: In...
Difference between decimal, float and double in .NET?
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2310
float and double are floating binary point types. In other words, they represent a number like...
Configure Sublime Text on OS X to show full directory path in title bar
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3 Answers
3
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Open files in 'rt' and 'wt' modes
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Tadhg McDonald-Jensen
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answered Apr 14 '14 at 2:36
devnulldevnull
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Define variable to use with IN operator (T-SQL)
...List VALUES (1)
INSERT INTO @MyList VALUES (2)
INSERT INTO @MyList VALUES (3)
INSERT INTO @MyList VALUES (4)
SELECT *
FROM MyTable
WHERE MyColumn IN (SELECT Value FROM @MyList)
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