大约有 48,000 项符合查询结果（耗时：0.0610秒） [XML]
Are soft deletes a good idea? [duplicate]
... to include a WHERE IsDeleted = false clause in every query on this table (and so much worse if you're JOINing these tables). A mistake here would be caught as soon as a user or tester noticed a deleted record showing up again, which might take some time. Also, it would be easy for a developer to ...
Calculating the difference between two Java date instances
I'm using Java's java.util.Date class in Scala and want to compare a Date object and the current time. I know I can calculate the delta by using getTime():
...
Generating all permutations of a given string
...all the permutations of a string. E.g. permutation for ba , would be ba and ab , but what about longer string such as abcdefgh ? Is there any Java implementation example?
...
Switch on ranges of integers in JavaScript [duplicate]
... than five");
break;
case (x < 9):
alert("between 5 and 8");
break;
case (x < 12):
alert("between 9 and 11");
break;
default:
alert("none");
break;
}
...
JavaScript math, round to two decimal places [duplicate]
... ) instead of forcing type coersion as it is more obvious to other people (and you later)
– Hugo Buff
Mar 24 '17 at 14:59
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What is an idempotent operation?
...g that x in the mathematical definition represents the state of an object, and f is an operation that may mutate that object. For example, consider the Python set and its discard method. The discard method removes an element from a set, and does nothing if the element does not exist. So:
my_set.dis...
Understanding typedefs for function pointers in C
... took me a while to get around to such a definition while trying to understand a numerical algorithm written in C a while ago. So, could you share your tips and thoughts on how to write good typedefs for pointers to functions (Do's and Do not's), as to why are they useful and how to understand other...
Is it possible to install iOS 6 SDK on Xcode 5?
...awhile since we updated; but they still accepted it after iOS 6 came out), and I currently build 10.5 apps with Xcode 5.
See How to point Xcode to an old SDK so it can be used as a "Base SDK"? for details on how to set it up. You can use my fix-xcode
script to link everything for you every time yo...
What's the difference between comma separated joins and join on syntax in MySQL? [duplicate]
...is no difference at all.
Second representation makes query more readable and makes it look very clear as to which join corresponds to which condition.
share
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Git diff against a stash
...h show -p stash@{1}
From the git stash manpages:
By default, the command shows the diffstat, but it will accept any
format known to git diff (e.g., git stash show -p stash@{1} to view
the second most recent stash in patch form).
...