大约有 43,000 项符合查询结果（耗时：0.0536秒） [XML]
How do you properly use namespaces in C++?
...mbols from the namespace.
The most secure way to use "using" is to import select symbols:
void doSomething()
{
using std::string ; // string is now "imported", at least,
// until the end of the function
string a("Hello World!") ;
std::cout << a << std::en...
How do I specify “close existing connections” in sql script
...RE @isStatAsyncOn bit
DECLARE @jobId int
DECLARE @sqlString nvarchar(500)
SELECT @dbId = database_id,
@isStatAsyncOn = is_auto_update_stats_async_on
FROM sys.databases
WHERE name = 'db_name'
IF @isStatAsyncOn = 1
BEGIN
ALTER DATABASE [db_name] SET AUTO_UPDATE_STATISTICS_ASYNC OFF
...
How can I check that a form field is prefilled correctly using capybara?
...ld('Your name').value).to eq 'John'
EDIT: Nowadays I'd probably use have_selector
expect(page).to have_selector("input[value='John']")
If you are using the page object pattern(you should be!)
class MyPage < SitePrism::Page
element :my_field, "input#my_id"
def has_secret_value?(value)
...
How to use an existing database with an Android application [duplicate]
... public Cursor getTestData() {
try {
String sql ="SELECT * FROM myTable";
Cursor mCur = mDb.rawQuery(sql, null);
if (mCur != null) {
mCur.moveToNext();
}
return mCur;
} catch (SQLException mSQLExcep...
Chrome DevTools Devices does not detect device when plugged in
...
Found it under Developer options > Select USB configuration. Changed it to "PTP (Picture Transfer Protocol)", but didn't solve the problem
– zok
Jul 5 '16 at 10:56
...
How do I enable TODO/FIXME/XXX task tags in Eclipse?
...ask Tags
You can enable searching for task tags in the [Task Tags] tab and select the content types in the [Filters] tab.
For Java task tags, you should look in:
Window > Preferences > Java > Compiler > Task Tags
J.
...
What is the difference/usage of homebrew, macports or other package installation tools? [closed]
...to do the same with Homebrew.
MacPorts support groups.
foo@macpro:~/ port select --summary
Name Selected Options
==== ======== =======
db none db46 none
gcc none gcc42 llvm-gcc42 mp-gcc48 none
llvm none mp-llvm-3.3 none
mys...
Appropriate datatype for holding percent values?
...to 1.00. For instance:
declare @discount numeric(9,9)
, @quantity int
select @discount = 0.999999999
, @quantity = 10000
select convert(money, @discount * @quantity)
share
|
improve this ...
How can I filter lines on load in Pandas read_csv function?
... read_csv. However, read_csv returns a DataFrame, which can be filtered by selecting rows by boolean vector df[bool_vec]:
filtered = df[(df['timestamp'] > targettime)]
This is selecting all rows in df (assuming df is any DataFrame, such as the result of a read_csv call, that at least contains ...
How to perform OR condition in django queryset?
...st_name__startswith='D'
)
leads to
In [5]: str(queryset.query)
Out[5]: 'SELECT "auth_user"."id", "auth_user"."password", "auth_user"."last_login",
"auth_user"."is_superuser", "auth_user"."username", "auth_user"."first_name",
"auth_user"."last_name", "auth_user"."email", "auth_user"."is_staff",
"a...