大约有 15,000 项符合查询结果（耗时：0.0358秒） [XML]
How to DROP multiple columns with a single ALTER TABLE statement in SQL Server?
...L. For fixed length types (int, numeric, float, datetime, uniqueidentifier etc) the space is consumed even for records added after the columns were dropped. To get rid of the wasted space do ALTER TABLE ... REBUILD.
share
...
How to disable anchor “jump” when loading a page?
...hat tab you're on; perhaps setting a cookie, or a value in a hidden field, etc etc.
I would say that if you don't want the page jumping on load, you would be better off using one of these other options rather than the hash, because the main reason for using the hash in preference to them is to allo...
Python error “ImportError: No module named”
...rsion:
.:/usr/lib/python
.:/usr/lib/python2.6
.:/usr/lib/python2.7 and etc.
share
|
improve this answer
|
follow
|
...
Primary key/foreign Key naming convention [closed]
...loyeeTable with EmployeeId PK, SupervisorId FK, MentorId Fk, PartnerId FK, etc. etc...
– Charles Bretana
Sep 2 '09 at 19:31
add a comment
|
...
Python memoising/deferred lookup property decorator
... Tip: Put a @wraps(fn) below @property to not loose your doc strings etc. (wraps comes from functools)
– letmaik
May 29 '14 at 10:12
|
...
Passing parameters to JavaScript files
...some_default_value';
}
alert(my_var_2); // to view the variable value
...etc...
share
|
improve this answer
|
follow
|
...
Polymorphism in C++
...hosen at runtime based on config files, command line switches, UI settings etc.,
implementation varied at runtime, such as for a state machine pattern.
When there's not a clear driver for run-time polymorphism, compile-time options are often preferable. Consider:
the compile-what's-called aspec...
Proper way to exit iPhone application?
...tions the user could take — turning on WiFi, enabling Location Services, etc. Allow the user to terminate the application at their own discretion.
WARNING: Do not call the exit function. Applications calling exit will appear to the user to have crashed, rather than performing a graceful ...
How to compile and run C/C++ in a Unix console/Mac terminal?
...gle source program:
make foo
where the source file is foo.c or foo.cpp, etc.
You dont even need a makefile. Make has enough built-in rules to build your source file into an executable of the same name, minus extension.
Running the executable just built is the same as running any program - but y...
C fopen vs open
...It's when you use seek. The following read with whatever command (fgets, fgetc, fscanf, fread) , will always read the whole size of the buffer (4K, 8K or whatever you set). By using the direct I/O you can avoid that. In that case it's even better to use pread instead of a seek/read pair (1 syscall i...