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Difference between EXISTS and IN in SQL?
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The exists keyword can be used in that way, but really it's intended as a way to avoid counting:
--this statement needs to check the entire table
select count(*) from [table] where ...
--this statement is true as soon as one match is found
exists ( select * from [table] where...
Reading specific lines only
...lose()
Note that i == n-1 for the nth line.
In Python 2.6 or later:
with open("file") as fp:
for i, line in enumerate(fp):
if i == 25:
# 26th line
elif i == 29:
# 30th line
elif i > 29:
break
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Injecting Mockito mocks into a Spring bean
I would like to inject a Mockito mock object into a Spring (3+) bean for the purposes of unit testing with JUnit. My bean dependencies are currently injected by using the @Autowired annotation on private member fields.
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How do I concatenate strings in Swift?
... do:
var c = "Hello"
c += ", World"
I'm sure there are more ways too.
Bit of description
let creates a constant. (sort of like an NSString). You can't change its value once you have set it. You can still add it to other things and create new variables though.
var creates a variable. (sort of l...
Rename MySQL database [duplicate]
I created a database with the name of hrms . Now I need to change database name to sunhrm . But, It is disabled in MySQL workbench. Can I do that on the Linux server itself?
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How to determine one year from now in Javascript
I'm trying to get one year from now's date, and it's not working.
7 Answers
7
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How to specify a min but no max decimal using the range data annotation attribute?
...follow
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edited May 19 at 16:29
carlin.scott
2,82011 gold badge1414 silver badges2525 bronze badges
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Nullable vs. int? - Is there any difference?
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No difference.
int? is just shorthand for Nullable<int>, which itself is shorthand for Nullable<Int32>.
Compiled code will be exactly the same whichever one you choose to use.
share
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Pass array to ajax request in $.ajax() [duplicate]
... yes...that worked..thanks..one more thing can be done ...that is initialize info = {}; then data: info,
– Poonam Bhatt
Jan 18 '12 at 4:45
2
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C# vs Java generics [duplicate]
...s good as the C# implementation. In that the syntax looks similar, what is it that is substandard about the Java implementation, or is it a religious point of view?
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