大约有 4,700 项符合查询结果(耗时:0.0331秒) [XML]

https://stackoverflow.com/ques... 

“Incorrect string value” when trying to insert UTF-8 into MySQL via JDBC?

... The second approach should be used selectively, i. e. never be applied to SELECT queries, as set names utf8mb4; select ... from ... will never produce a ResultSet and instead result in a ResultSet is from UPDATE. No Data. error. ...
https://stackoverflow.com/ques... 

Why would I use Scala/Lift over Java/Spring? [closed]

...t that @harryh isn't a super-genius) and his main focus was re-writing the PHP version of FourSquare while coping with weekly traffic doubling. The last part of Lift's security focus is SiteMap. It's a unified access control, site navigation, and menu system. The developer defines the access cont...
https://stackoverflow.com/ques... 

Get Substring between two characters using javascript

... @VirtualTroll 8 sec? Holy hell I want to see your "solution" :D – tom Jul 28 '18 at 17:48 ...
https://stackoverflow.com/ques... 

GROUP BY with MAX(DATE) [duplicate]

...,to,rate. 203161 rows total. Joe Meyer method gives 362 rows in set (31,29 sec). Oliver Hanappi method gives 362 rows in set (0,04 sec) – TheRoSS Dec 5 '17 at 13:24 ...
https://stackoverflow.com/ques... 

Database development mistakes made by application developers [closed]

...e NOT NULL and FOREIGN KEY if I’ll always control my database input with php? Are foreign keys really necessary in a database design? Are foreign keys really necessary in a database design? 3. Using natural rather than surrogate (technical) primary keys Natural keys are keys based on externally...
https://stackoverflow.com/ques... 

Why is Go so slow (compared to Java)?

...shed as the benchmarks game - shootout.alioth.debian.org/flawed-benchmarks.php – igouy Apr 24 '10 at 17:24 ...
https://stackoverflow.com/ques... 

MySQL Error 1153 - Got a packet bigger than 'max_allowed_packet' bytes

...se < dump.sql Also, change the my.cnf or my.ini file under the mysqld section and set: max_allowed_packet=100M or you could run these commands in a MySQL console connected to that same server: set global net_buffer_length=1000000; set global max_allowed_packet=1000000000; (Use a very lar...
https://stackoverflow.com/ques... 

How to send PUT, DELETE HTTP request in HttpURLConnection?

...on) url.openConnection(); connection.setRequestMethod("DELETE"); int responseCode = connection.getResponseCode(); share | improve this answer | follow | ...
https://stackoverflow.com/ques... 

How do you check that a number is NaN in JavaScript?

...ariable !== variable . As it is laid out in specs tc39.github.io/ecma262/#sec-isnan-number – allsyed Jul 11 '16 at 5:43 5 ...
https://stackoverflow.com/ques... 

asynchronous vs non-blocking

...nd rely on the framework/OS to notify us via callback or posting an event. Second, the action: non-blocking does absolutely nothing but return an error, whereas async queues the action or does it "in the background" in some sense. Which difference is more important in distinguishing the terms? Is ei...