大约有 5,882 项符合查询结果（耗时：0.0139秒） [XML]
How do I grant myself admin access to a local SQL Server instance?
...s=1,3" %%i in (`sqlcmd -S np:\\.\pipe\SQLLocal\%sqlinstance% -E -Q "create table #foo (bar int); declare @rc int; execute @rc = sp_addsrvrolemember '$(sqllogin)', 'sysadmin'; print 'RETURN_CODE : '+CAST(@rc as char)"`) do if .%%i == .RETURN_CODE set sqlresult=%%j
rem
rem stop the SQL servi...
How do emulators work and how are they written? [closed]
...when your code throws a given interrupt, you look at the interrupt handler table and call the proper callback.
Hardware emulation:
There are two sides to emulating a given hardware device:
Emulating the functionality of the device
Emulating the actual device interfaces
Take the case of a hard-driv...
When is an interface with a default method initialized?
...erface preparation stage (JLS 12.3.2) which initializes things like method tables. But perhaps this went too far and accidentally did full initialization instead.
I've raised this question on the OpenJDK compiler-dev mailing list. There's been a reply from Alex Buckley (editor of the JLS) in which ...
Comparison of Android networking libraries: OkHTTP, Retrofit, and Volley [closed]
...close, not a 3x improvement as shown in the "One Discussion" column of the table. Granted, the resulting code is much cleaner and I didn't have to write my own JSON parser, but for a single GET request the improvement wasn't there.
– Gary Kipnis
Jun 11 '16 at 8...
Why does Python print unicode characters when the default encoding is ASCII?
...'s.
More details on unicode, UTF-8 and latin-1:
Unicode is basically a table of characters where some keys (code points) have been conventionally assigned to point to some symbols. e.g. by convention it's been decided that key 0xe9 (233) is the value pointing to the symbol 'é'. ASCII and Unicod...
STL or Qt containers?
...s
are streamable with QDataStream
are used extensively in Qt's API
have a stable implementation across operating systems. A STL implementation must obey the C++ standard, but
is otherwise free to do as it pleases (see the std::string COW controversy). Some STL implementations are especially
bad.
pro...
Equation (expression) parser with precedence?
...sers.telenet.be/bartl/expressionParser/expressionParser.html.
// operator table
var ops = {
'+' : {op: '+', precedence: 10, assoc: 'L', exec: function(l,r) { return l+r; } },
'-' : {op: '-', precedence: 10, assoc: 'L', exec: function(l,r) { return l-r; } },
'*' : {op: '*', precedence: 2...
What is the fastest integer division supporting division by zero no matter what the result is?
...y accessible in C through using idiom. That is why it so hard to make a portable multiple precision integer library in C without resorting to (inline) assembly. My guess is that most decent compilers will understand the above idiom.
Another way of avoiding branches, as also remarked in some of the ...
What is the difference between a strongly typed language and a statically typed language?
...verything can be treated as a string.
– Little Bobby Tables
Apr 22 '10 at 12:14
Bobby, in a weakly typed language "5" ...
Are there good reasons not to use an ORM? [closed]
...o make a lot of difference to your TCO. For a first approximation, 98% portable is just as good as 100% portable, and far better than convoluted or poorly performing solutions to work around the limits of an ORM.
I have seen the former approach work well on a very large (100's of staff-years) J2EE...