大约有 23,000 项符合查询结果（耗时：0.0447秒） [XML]
Unique constraint that allows empty values in MySQL
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
Draft saved
Draft discarded
...
java.sql.SQLException: Incorrect string value: '\xF0\x9F\x91\xBD\xF0\x9F…'
...alent to autodetection of the character set.
Adjust your columns and database as well:
var1 varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL
Again, your MySQL version needs to be relatively up-to-date for utf8mb4 support.
...
Making Python loggers output all messages to stdout in addition to log file
...
Here is a solution based on the powerful but poorly documented logging.config.dictConfig method.
Instead of sending every log message to stdout, it sends messages with log level ERROR and higher to stderr and everything else to stdout.
This can...
Insert the carriage return character in vim
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
Draft saved
Draft discarded
...
Django fix Admin plural
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
Draft saved
Draft discarded
...
How to throw std::exceptions with variable messages?
...gfile);
throw std::runtime_error("Error: " + anotherfile);
Note that the base class std::exception can not be constructed thus; you have to use one of the concrete, derived classes.
share
|
improv...
Error Domain=NSURLErrorDomain Code=-1005 “The network connection was lost.”
...ut option.
You can simply disable the keep alive mechanism for iOS clients based on the User-Agent of your app (e.g. for Apache: BrowserMatch "iOS 8\." nokeepalive in the mod file setenvif.conf)
If you don't have access to the server, you can try sending your requests with a Connection: close header...
How can I append a string to an existing field in MySQL?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
Draft saved
Draft discarded
...
How do you receive a url parameter with a spring controller mapping
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
Draft saved
Draft discarded
...
How to tell which commit a tag points to in Git?
...and thus getting them more upvotes later. This is a biasing feedback loop based on speed of response over quality of response. With sufficient imagination this problem could be fixed.
– samthebest
Sep 7 '15 at 11:35
...