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How can I remove duplicate rows?
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MySQL error with the first script 'You can't specify target table 'TableName' for update in FROM clause'
– D.Rosado
Jun 13 '12 at 10:54
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How to reload a clojure file in REPL
...must
remember to reload them in the correct order to avoid compilation
errors.
If you remove definitions from a source file and then reload it,
those definitions are still available in memory. If other code
depends on those definitions, it will continue to work but will
break the next ti...
How to return a result from a VBA function
...o return an array then something like ReDim test(1 to 100) will trigger an error. Also, even though it is possible to treat basic type like Integers like that it is considered somewhat unidiomatic. It makes the code harder to read. VBA programmers scan for lines which assign to the function name to ...
What will happen if I modify a Python script while it's running?
...and started another instance in a separate console. After awhile, I got an error returned from the first console about the two lines of code that I changed after starting it! pls help
– double_j
Jan 26 '15 at 19:44
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Why an abstract class implementing an interface can miss the declaration/implementation of one of th
... subclass of AbstractThing without implementing the m2 method and see what errors the compiler gives you. It will force you to implement this method.
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Choosing the default value of an Enum type without having to change values
...tional information: Object reference not set to an instance of an object." error. How to fix it? Note: I use an extension method in order to display enum's Descriptions, but not sure how to avoid the error in the helper method (GetDescription) defined on this page
– Jack
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Is there a simple, elegant way to define singletons? [duplicate]
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class Foo:
def __init__(self):
print 'Foo created'
f = Foo() # Error, this isn't how you get the instance of a singleton
f = Foo.instance() # Good. Being explicit is in line with the Python Zen
g = Foo.instance() # Returns already created instance
print f is g # True
And here's the c...
Generating random strings with T-SQL
...should differ by first character, but it does not because of an off-by-one error: SUBSTRING(..., 0, ...) returns empty string for index 0, and for 529126 this 'hides' the first character generated. Fix is to compute @dice = rand(@seed) * len(@specials)+1 to make the indexes 1 based.
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Can Json.NET serialize / deserialize to / from a stream?
...rge enough, and you're stuck in a 32-bit process, you may still get memory errors with this code
– PandaWood
Oct 21 '16 at 3:03
1
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Is there a method to generate a UUID with go language
...e, 16)
_, err := rand.Read(b)
if err != nil {
fmt.Println("Error: ", err)
return
}
uuid = fmt.Sprintf("%X-%X-%X-%X-%X", b[0:4], b[4:6], b[6:8], b[8:10], b[10:])
return
}
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