大约有 19,000 项符合查询结果（耗时：0.0433秒） [XML]
Sending a message to nil in Objective-C
...
The recent OSX root exploit/hidden backdoor api is accessible for all users (not just admins) because of obj-c's Nil messaging.
– dcow
Apr 20 '15 at 15:58
...
Android: Clear Activity Stack
...close existing activity stack regardless of what's in there and create new root, correct set of flags is the following:
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
From the doc:
public static final int FLAG_ACTIVITY_CLEAR_TASK
Added in API level 11
...
Transaction isolation levels relation with locks on table
...Spanish).
By the way, you can set the isolation level on RDBMS as well:
MySQL isolation level,
SQL Server isolation level
Informix isolation level (Personal Note: I will never forget about SET ISOLATION TO DIRTY READ sentence.)
and on and on...
...
`ui-router` $stateParams vs. $state.params
...
I have a root state which resolves sth. Passing $state as a resolve parameter won't guarantee the availability for $state.params. But using $stateParams will.
var rootState = {
name: 'root',
url: '/:stubCompanyId',
abstra...
SQL: How to get the count of each distinct value in a column?
...
Not the answer you're looking for? Browse other questions tagged mysql sql count or ask your own question.
Understanding PrimeFaces process/update and JSF f:ajax execute/render attributes
...of the current component.
@previous Previous sibling.
@next Next sibling.
@root UIViewRoot instance of the view, can be used to start searching from the root instead the current component.
But, it also comes with some PrimeFaces specific keywords:
@row(n) nth row.
@widgetVar(name) Component with...
How to avoid “cannot load such file — utils/popen” from homebrew on OSX
...wish you can return /usr/local to its default ownership with: sudo chown root:wheel /usr/local"
– Bert
Nov 1 '16 at 23:28
...
RESTful Authentication
...hatever you
choose) and verifies auth against the user store (LDAP, AD, or MySQL DB etc.)
If verified, creates an auth token and hands it back to the
client/caller
The caller then sends this auth token + request specific params with
every subsequent request to other business REST APIs, until logged ...
how do I query sql for a latest record date for each user
...
Working for MySQL
– School Boy
Nov 26 '16 at 12:52
1
...
What is the difference between bottom-up and top-down?
...way that avoids recalculating duplicate work. You have a main problem (the root of your tree of subproblems), and subproblems (subtrees). The subproblems typically repeat and overlap.
For example, consider your favorite example of Fibonnaci. This is the full tree of subproblems, if we did a naive r...