大约有 30,000 项符合查询结果（耗时：0.0493秒） [XML]
Locking pattern for proper use of .NET MemoryCache
...of C# In a Nutshell discusses this here, albahari.com/threading/part2.aspx#_MonitorEnter_and_MonitorExit
– BrutalSimplicity
May 12 '18 at 15:27
9
...
How can I query a value in SQL Server XML column
...e this:
select * from
(select
pref.value('(text())[1]', 'varchar(32)') as RoleName
from
MyTable CROSS APPLY
Roles.nodes('/root/role') AS Roles(pref)
) as Result
where RoleName like '%ga%'
You can check the SQL Fiddle here: http://sqlfiddle.com/#!18/dc4d2/1/0
...
Difference between DateTime and Time in Ruby
...In versions prior to Ruby 1.9 and on many systems Time is represented as a 32-bit signed value describing the number of seconds since January 1, 1970 UTC, a thin wrapper around a POSIX-standard time_t value, and is bounded:
Time.at(0x7FFFFFFF)
# => Mon Jan 18 22:14:07 -0500 2038
Time.at(-0x7FFFF...
SQL Server - SELECT FROM stored procedure
...
Kolappan N
1,83322 gold badges2323 silver badges2727 bronze badges
answered Sep 29 '09 at 13:13
Mehrdad AfshariMehrd...
Should I use an exception specifier in C++?
...t really know what it might do when something goes horribly wrong.
int lib_f();
void g() throw( k_too_small_exception )
{
int k = lib_f();
if( k < 0 ) throw k_too_small_exception();
}
g will terminate, when lib_f() throws. This is (in most cases) not what you really want. std::terminat...
Regex to replace multiple spaces with a single space
...e( / +/g, ' ' ) -> 790ms
str.replace( / +(?= )/g, ' ') -> 3250ms
This is on Firefox, running 100k string replacements.
I encourage you to do your own profiling tests with firebug, if you think performance is an issue. Humans are notoriously bad at predicting where the bottleneck...
Best way to parse RSS/Atom feeds with PHP [closed]
...e RSS experience and needs a better parser.
– duality_
Jul 30 '11 at 13:49
3
In case somebody nee...
Proper way to handle multiple forms on one page in Django
... BannedPhraseForm(request.POST, prefix='banned')
if bannedphraseform.is_valid():
bannedphraseform.save()
else:
bannedphraseform = BannedPhraseForm(prefix='banned')
if request.method == 'POST' and not bannedphraseform.is_valid():
expectedphraseform = ExpectedPhraseForm(request.PO...
Stack vs heap allocation of structs in Go, and how they relate to garbage collection
...
gchaingchain
75322 gold badges88 silver badges1313 bronze badges
add a comme...
Best way to extract a subvector from a vector?
...
Greg RogersGreg Rogers
32.4k1515 gold badges6060 silver badges9191 bronze badges
...