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Count(*) vs Count(1) - SQL Server
...dbo.tab800krows GROUP BY FKID
Same IO, same plan, the works
Edit, Aug 2011
Similar question on DBA.SE.
Edit, Dec 2011
COUNT(*) is mentioned specifically in ANSI-92 (look for "Scalar expressions 125")
Case:
a) If COUNT(*) is specified, then the result is the cardinality of T.
That is...
What is the C++ function to raise a number to a power?
... Johannes Schaub - litbJohannes Schaub - litb
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What is a good reason to use SQL views?
...uel Jordan
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answered Apr 21 '10 at 4:38
DVKDVK
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How do I update the GUI from another thread?
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Ian Chu Te
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answered Mar 19 '09 at 10:37
Ian KempIan Kemp
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Array.push() if does not exist?
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You could extend the Array prototype with a custom method:
// check if an element exists in a...
What is Scala's yield?
... +1 for showing it.
– Ralph
Oct 12 '11 at 11:20
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Show DialogFragment with animation growing from a point
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This will only wok with > API 11 @Kiran Babu answer is a work around
– Blundell
Apr 14 '13 at 13:55
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Do try/catch blocks hurt performance when exceptions are not thrown?
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Eclipse: Error “.. overlaps the location of another project..” when trying to create new project
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Merge/flatten an array of arrays
...the arrays, although it is only available in Node.js starting with version 11, and not at all in Internet Explorer.
const arrays = [
["$6"],
["$12"],
["$25"],
["$25"],
["$18"],
["$22"],
["$10"]
];
const merge3 = arrays.flat(1); //The depth ...