大约有 44,000 项符合查询结果（耗时：0.0297秒） [XML]
How do I get jQuery to select elements with a . (period) in their ID?
...
From Google Groups:
Use two backslashes before each special character.
A backslash in a jQuery selector escapes the next character. But you need
two of them because backslash is also the escape character for JavaScript
strings. The first backslash escapes th...
How to jQuery clone() and change id?
...ents with IDs like klon--5 but scrambled (not in order). Here we cannot go for :last or :first, therefore we need a mechanism to retrieve the highest ID:
const $all = $('[id^="klon--"]');
const maxID = Math.max.apply(Math, $all.map((i, el) => +el.id.match(/\d+$/g)[0]).get());
const nextId ...
Want to find records with no associated records in Rails
... Just imagine you have 10000000 records in friends table. What about performance in that case?
– goodniceweb
Dec 20 '16 at 14:51
...
How to get last inserted id?
...
For SQL Server 2005+, if there is no insert trigger, then change the insert statement (all one line, split for clarity here) to this
INSERT INTO aspnet_GameProfiles(UserId,GameId)
OUTPUT INSERTED.ID
VALUES(@UserId, @GameId)...
Mysql order by specific ID values
...
You should be able to use CASE for this:
ORDER BY CASE id
WHEN 1 THEN 1
WHEN 5 THEN 2
WHEN 4 THEN 3
WHEN 3 THEN 4
ELSE 5
END
share
|
improve t...
How to use ScrollView in Android?
...layout simply needs to be arranged so they all have room on the screen. As for one ScrollView inside another, that's difficult. Instead, the Android compatibility library has NestedScrollView. There are lots of tutorials on the web for how to use NestedScrollView for that application.
...
How to get the instance id from within an ec2 instance?
... also use curl instead of wget, depending on what is installed on your platform.
share
|
improve this answer
|
follow
|
...
How to debug Lock wait timeout exceeded on MySQL?
...es.
Since you know the query, all the tables being accessed are candidates for being the culprit.
From there, you should be able to run SHOW ENGINE INNODB STATUS\G
You should be able to see the affected table(s)
You get all kinds of additional Locking and Mutex Information.
Here is a sample from one...
Facebook access token server-side validation for iPhone app
... token that you got from step 1.
The debug endpoint basically dumps all information about a token, so it'll respond with something like this:
{
data: {
app_id: YOUR_APP_ID,
is_valid: true,
metadata: {
sso: "iphone-safari"
},
application: YOUR...
Insert auto increment primary key to existing table
... tbl ADD id INT PRIMARY KEY AUTO_INCREMENT;
On a temporary table created for testing purposes, the above statement created the AUTO_INCREMENT id column and inserted auto-increment values for each existing row in the table, starting with 1.
...