大约有 19,000 项符合查询结果（耗时：0.0454秒） [XML]
SQL command to display history of queries
I would like to display my executed sql command history in my MYSQL Query Browser. What is the sql statement for displaying history?
...
NoSQL - MongoDB vs CouchDB [closed]
...ch, filling up disks.
For example: For most things that you would do with MySQL or PostgreSQL, but having predefined columns really holds you back.
CouchDB (1.2)
Written in: Erlang
Main point: DB consistency, ease of use
License: Apache
Protocol: HTTP/REST
Bi-directional (!) replication,
continu...
CHECK constraint in MySQL is not working
...
MySQL 8.0.16 is the first version that supports CHECK constraints.
Read https://dev.mysql.com/doc/refman/8.0/en/create-table-check-constraints.html
If you use MySQL 8.0.15 or earlier, the MySQL Reference Manual says:
T...
XMLHttpRequest cannot load file. Cross origin requests are only supported for HTTP
... wamp? I am running wamp and still receiving this message. Apache, php and mysql are all up-to-date
– user2883071
Dec 24 '14 at 18:52
...
pip install mysql-python fails with EnvironmentError: mysql_config not found
...
It seems mysql_config is missing on your system or the installer could not find it.
Be sure mysql_config is really installed.
For example on Debian/Ubuntu you must install the package:
sudo apt-get install libmysqlclient-dev
Maybe...
Serializing object that contains cyclic object value
...which is objects with the special $ref property. Let's see how that works.
root = makeToolshed();
[root.bolt === root.nut.needs, root.nut.needs.needs === root.nut]; // retutrns [true,true]
The dollar sign stands for the root. .bolt having $ref tells us that .bolt is an "already seen" object, and th...
How to create a zip archive of a directory in Python?
...port zipfile
def zipdir(path, ziph):
# ziph is zipfile handle
for root, dirs, files in os.walk(path):
for file in files:
ziph.write(os.path.join(root, file))
if __name__ == '__main__':
zipf = zipfile.ZipFile('Python.zip', 'w', zipfile.ZIP_DEFLATED)
zipdir('tmp/'...
PDOException “could not find driver”
I have just installed Debian Lenny with Apache, MySQL, and PHP and I am receiving a PDOException could not find driver .
3...
Django MEDIA_URL and MEDIA_ROOT
...rest of your URLconf goes here ...
) + static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)
You no longer need if settings.DEBUG as Django will handle ensuring this is only used in Debug mode.
ORIGINAL answer for Django <= 1.6
Try putting this into your urls.py
from django.conf im...
MySQL Server has gone away when importing large sql file
...
As stated here:
Two most common reasons (and fixes) for the MySQL server has gone away
(error 2006) are:
Server timed out and closed the connection. How to fix:
check that wait_timeout variable in your mysqld’s my.cnf configuration file is large enough. On Debian: su...