大约有 32,000 项符合查询结果（耗时：0.0448秒） [XML]
SQL Server - transactions roll back on error?
...COMMIT sentence out of the statement, check the results of the inserts and then issue either COMMIT or ROLLBACK depending on the results of the check.
share
|
improve this answer
|
...
What is the difference between association, aggregation and composition?
...bject cannot meaningfully exist without the parent class object. If it can then it is called Aggregation.
More details here.
I am the author of http://opensourceforgeeks.blogspot.in and have added a link above to the relevant post for more context.
...
When and how should I use a ThreadLocal variable?
...ter to use a thread-safe alternative. If you agree that singletons are bad then ThreadLocal is even worse.
– Alexander Ryzhov
Jun 27 '13 at 17:32
4
...
Scala constructor overload?
...(12, x=2) you must write new Foo(x=2, 12). You can write new Foo(12, y=2), then you'll get Foo(12, 2, 0)
– Jörgen Lundberg
Sep 26 '14 at 13:10
add a comment
...
Using CMake with GNU Make: How can I see the exact commands?
...
If you use the CMake GUI then swap to the advanced view and then the option is called CMAKE_VERBOSE_MAKEFILE.
share
|
improve this answer
|...
How to get rspec-2 to give the full trace associated with a test failure?
...n't get it, neither this or the accepted answer give you backtrace further then from your spec file. Or it doesn't work only for me o_O
– janko-m
Sep 4 '12 at 16:16
...
Git and Mercurial - Compare and Contrast
... predictable (and quite useful) even if A is not ancestor of B: A..B means then range of revisions from common ancestor of A and B (merge base) to revision B.
In Mercurial revision ranges are based on range of revision numbers. Range is specified using A:B syntax, and contrary to Git range acts as a...
How to skip to next iteration in jQuery.each() util?
...of has the idea of 'truthiness' and 'falsiness'. If a variable has a value then, generally 9as you will see) it has 'truthiness' - null, or no value tends to 'falsiness'. The snippets below might help:
var temp1;
if ( temp1 )... // false
var temp2 = true;
if ( temp2 )... // true
var temp3 = ""...
Should I declare Jackson's ObjectMapper as a static field?
...e fully (re)configured, according to same rules: fully configure it first, then use, and that is fine. There is non-trivial cost associated (since copy can not use any of cached handlers), but it is the safe way, yes.
– StaxMan
Jun 2 '17 at 18:30
...
Does anyone have benchmarks (code & results) comparing performance of Android apps written in Xamari
...tend to port some part of my real life Java code to C# and run benchmarks, then post them here - if they reopen my question that is, as the SO vigilantes closed it almost immediately.
– gregko
Jun 17 '13 at 12:26
...