大约有 30,000 项符合查询结果（耗时：0.0373秒） [XML]
MySQL and GROUP_CONCAT() maximum length
...
@NoWay you have to set the value in a configuration file (e.g. my.cnf) for the setting to apply on a restart of mysql. No SET query will affect settings after a restart.
– Buttle Butkus
Feb 13 '18 at 7:27
...
How can I exclude all “permission denied” messages from “find”?
...platforms come with it, making this solution widely portable:
find . > files_and_folders 2> >(grep -v 'Permission denied' >&2)
Note: There's a small chance that some of grep's output may arrive after find completes, because the overall command doesn't wait for the command inside &...
What is a “batch”, and why is GO used?
...nd makes the answers second point about transactions and the size of a log file incorrect. GO will have no effect whatsoever. The first and third answers are correct. In addition, there are times in which you need to separate statements into separate batches, for example you can't add a column to...
string.ToLower() and string.ToLowerInvariant()
... only change behavior with Turkish cultures. Also, on Windows systems, the file system is case-insensitive, which further limits its use...
http://www.dotnetperls.com/tolowerinvariant-toupperinvariant
hth
share
|...
Does Git Add have a verbose switch
... if commands succeed. For example, git commit tells me, how many lines and files have changed, if new files have been created, or git push informs me about the progress of pushing to upstream.
– LukeLR
Feb 21 '19 at 11:54
...
linux下iptables配置详解 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...令配置IP一样,重起就会失去作用),怎么保存.
[root@tp ~]# /etc/rc.d/init.d/iptables save
这样就可以写到/etc/sysconfig/iptables文件里了.写入后记得把防火墙重起一下,才能起作用.
[root@tp ~]# service iptables restart
现在IPTABLES配置表里什么配...
WAMP error: Forbidden You don't have permission to access /phpmyadmin/ on this server
...
Change the file content of c:\wamp\alias\phpmyadmin.conf to the following.
Note: You should set the Allow Directive to allow from your local machine for security purposes. The directive Allow from all is insecure and should be limited ...
I need to securely store a username and password in Python, what are my options?
...nfo so anyone who has full system access has the script and its associated files and can access them. What this does do id obscures the data from casual inspection and leaves the data files themselves secure if they are examined individually, or together without the script.
My motivation for this i...
Download a file with Android, and showing the progress in a ProgressDialog
...n that gets updated. For this I need a simple function that can download a file and show the current progress in a ProgressDialog . I know how to do the ProgressDialog , but I'm not sure how to display the current progress and how to download the file in the first place.
...
How to analyze a java thread dump?
...for cleaning up resources. I need to do more study on it, but if you have files open, sockets, etc... related to an objects methods, then the finalizer is going to work on freeing those items up as well.
What is the figure in squared parenthesis after Object.wait in the
thread dump?
It is a...