大约有 47,000 项符合查询结果（耗时：0.0723秒） [XML]
Is volatile expensive?
...Cookbook for Compiler Writers about the implementation of volatile, especially section "Interactions with Atomic Instructions" I assume that reading a volatile variable without updating it needs a LoadLoad or a LoadStore barrier. Further down the page I see that LoadLoad and LoadStore are effective...
Find rows that have the same value on a column in MySQL
...
count(1) works equally well, and is more performant. (Learned that trick from Stack Overflow ;-)
– jpaugh
Jul 18 '16 at 18:32
...
Completely cancel a rebase
...rebase)
it's already too late to retrace your steps. The solution is normally
rm -r .git/<some rebase dir>
and continue with your life.
But there could be two different directories for <some rebase dir> (and it obviously requires some knowledge of how rebase works), and the "....
Bigger Glyphicons
...t-size:1.5em;" class="glyphicon glyphicon-th-list"></span>
This allows you to change size on the fly. Works best for ad hoc requirements to change the size, rather than changing the css and having it apply to all.
...
In Intellij IDEA how do I replace text with a new line?
Say I wanted to replace all commas with commas and a new line using Intellij IDEA's replace function. What do I put in the search box? In vim I'd use &\r
...
How do you join on the same table, twice, in mysql?
...LEFT JOIN domain AS fromD
ON fromD.Dom_ID = rvw.rev_dom_from
EDIT:
All you're doing is joining in the table multiple times. Look at the query in the post: it selects the values from the Reviews tables (aliased as rvw), that table provides you 2 references to the Domain table (a FOR and a F...
What is the etymology of 'slug'? [closed]
...d the word in a conversation with someone and when they asked me why it's called that I realized I didn't know.
2 Answers
...
MySQL Query to select data from last week?
...ave a table with a date field and some other information.
I want to select all entries from the past week, (week start from Sunday).
...
Batch files : How to leave the console window open
...
If that is really all the batch file is doing, remove the cmd /K and add PAUSE.
start /B /LOW /WAIT make package
PAUSE
Then, just point your shortcut to "My Batch File.bat"...no need to run it with CMD /K.
UPDATE
Ah, some new info......
Using Eloquent ORM in Laravel to perform search of database using LIKE
... This is the more 'Laravel' way of doing this. It's just cleaner and allows you to adjust the scope in one place, instead of having to go around and adjust each ->where().
– Daniel Dewhurst
Oct 6 '16 at 15:06
...