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How to sort List of objects by some property
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On Duplicate Key Update same as insert
... update it in any case?
For eg. if your columns a to g are already set as 2 to 8; there would be no need to re-update it.
Alternatively, you can use:
INSERT INTO table (id,a,b,c,d,e,f,g)
VALUES (1,2,3,4,5,6,7,8)
ON DUPLICATE KEY
UPDATE a=a, b=b, c=c, d=d, e=e, f=f, g=g;
To get the id from ...
How to automatically generate N “distinct” colors?
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82
You can use the HSL color model to create your colors.
If all you want is differing hues (likel...
SQL-Server: Error - Exclusive access could not be obtained because the database is in use
I am actually trying to make a script (in Sql Server 2008) to restore one database from one backup file. I made the following code and I am getting an error -
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How to clear a chart from a canvas so that hover events cannot be triggered?
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Set operations (union, intersection) on Swift array?
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Yes, Swift has the Set class.
let array1 = ["a", "b", "c"]
let array2 = ["a", "b", "d"]
let set1:Set<String> = Set(array1)
let set2:Set<String> = Set(array2)
Swift 3.0+ can do operations on sets as:
firstSet.union(secondSet)// Union of two sets
firstSet.intersection(secondSet)...
How to redirect stderr to null in cmd.exe
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Your DOS command 2> nul
Read page Using command redirection operators. Besides the "2>" construct mentioned by Tanuki Software, it lists some other useful combinations.
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Rename multiple files based on pattern in Unix
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Add SUM of values of two LISTS into new LIST
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