mysql怎么设定explicit_defaults_for_timestamp=1
执行一下SQL语句时显示
SET GLOBAL explicit_defaults_for_timestamp = 1;
>> ERROR 1227 (42000): Access denied; you need (at least one of) the SUPER privilege(s) for this operation
eranga@eranga-Inspiron-3521:~$ sudo pip install quandl
The directory '/home/eranga/.cache/pip/http' or its parent directory is not owned by the current user and the cache has been disabled. Please check the permissions and owner of that directory. If executing pip with sudo, you may want sud
Rails控制台不能在我的生产服务器上工作。下面是发生的情况:
root@myapp:/webapps/myapp/current# rails c
/usr/local/rvm/rubies/ruby-1.9.3-p194/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require': cannot load such file -- rails/cli (LoadError)
from /usr/local/rvm/rubies/ruby-1.9.3-p194/lib/ruby/site_ruby/1
我已经在我的Android平板电脑(联想a5500-hv)上安装了Slackware的最新版本,我也安装了xfce。但是,当我想使用命令startxfce4运行它时,它会失败,出现以下错误:
/usr/bin/startxfce4: line 118: exec: xinit: not found
我不知道怎么才能解决这个问题。我是Linux新手。
因此,请尽可能清楚地解释一切,以及解决我的问题的代码,并在启动时运行这个桌面。这是我所说的截图:
📷
我有一个惠普Elitebook 850 G1,并安装了一个新的副本Ubuntu14.04,但Ubuntu没有检测到内置的网络摄像头。有什么办法解决这个问题吗?为什么会这样?
lsusb输出
Bus 001 Device 002: ID 8087:8000 Intel Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 002: ID 0424:5534 Standard Microsystems Corp.
Bus 003 Device 001: ID 1d6b:0003 Lin
我试图在CentOS 7中构建一个内核模块。
$ make
make -C /usr/src/kernels/`uname -r` SUBDIRS= modules
make[1]: Entering directory `/usr/src/kernels/3.10.0-514.21.1.el7.x86_64'
Makefile:641: Cannot use CONFIG_CC_STACKPROTECTOR_STRONG: -fstack-protector-strong not supported by compiler
make[2]: *** No rule to make t