大约有 47,000 项符合查询结果（耗时：0.0469秒） [XML]
updating table rows in postgres using subquery
...
720
Postgres allows:
UPDATE dummy
SET customer=subquery.customer,
address=subquery.address,
...
How do I create a Python function with optional arguments?
...
2 Answers
2
Active
...
CSS last-child selector: select last-element of specific class, not last child inside of parent?
...
235
:last-child only works when the element in question is the last child of the container, not th...
Reload django object from database
...
274
As of Django 1.8 refreshing objects is built in. Link to docs.
def test_update_result(self):
...
Set element width or height in Standards Mode
...
2 Answers
2
Active
...
NuGet Package Manager errors when trying to update
Opening VS2010 today, the extension manager notified me of an update for NuGet Package Manager.
4 Answers
...
How to check if variable's type matches Type stored in a variable
... Animal {}
...
object x = new Tiger();
bool b1 = x is Tiger; // true
bool b2 = x is Animal; // true also! Every tiger is an animal.
But checking for type identity with reflection checks for identity, not for compatibility
bool b5 = x.GetType() == typeof(Tiger); // true
bool b6 = x.GetType() == ty...
String.Join method that ignores empty strings?
...
ᴍᴀᴛᴛ ʙᴀᴋᴇʀ
2,47011 gold badge2020 silver badges3737 bronze badges
answered May 1 '13 at 20:36
DamithDamith
...
XPath to select multiple tags
...
210
One correct answer is:
/a/b/*[self::c or self::d or self::e]
Do note that this
a/b/*[local...