大约有 7,400 项符合查询结果(耗时:0.0202秒) [XML]
generate model using user:references vs user_id:integer
...tionship. Therefore when you generate the EER Diagrams using software like MySql Workbench you find that there is no relationship threads drawn between the models. Like in the following pic
However, if you use the later method you find that you migration file looks like:
def change
create_ta...
Closing JDBC Connections in Pool
...
Not the answer you're looking for? Browse other questions tagged java mysql jdbc connection-pooling or ask your own question.
Can I protect against SQL injection by escaping single-quote and surrounding user input with single-
...ainst this sanitization method I would love to see it."
Now, besides the MySQL backslash escaping - and taking into account that we're actually talking about MSSQL, there are actually 3 possible ways of still SQL injecting your code
sSanitizedInput = "'" & Replace(sInput, "'", "''") & ...
Html code as IFRAME source rather than a URL
...ml code? so my problem is simple, I have a page it loads an HTML body from MYSQL I want to present that code in a frame so it renders it self independent of the rest of the page and in the confines of that specific bordering.
...
How to get error message when ifstream open fails
...:endl;
}
return 0;
}
Example output (Ubuntu w/clang):
$ ./test /root/.profile
failed to open /root/.profile: Permission denied (system:13)
$ ./test missing.txt
failed to open missing.txt: No such file or directory (system:2)
$ ./test ./test
opened ./test
$ ./test $(printf '%0999x')
failed...
Should I Dispose() DataSet and DataTable?
...y !FinalizeQueue in SOS)
The DataTable, DataSet, DataView classes are all rooted at MarshalByValueComponent, a finalizable object that can (potentially) handle unmanaged resources
Because DataTable, DataSet, DataView don’t introduce unmanaged resources, they suppress finalization in their const...
Using Custom Domains With IIS Express
... ▼ from the drop down
Project Url: http://localhost
Override application root URL: http://dev.example.com
Click Create Virtual Directory (if you get an error here you may need to disable IIS 5/6/7/8, change IIS's Default Site to anything but port :80, make sure Skype isn't using port 80, etc.)
O...
JavaScript DOM remove element
...ethod to the prototypes of any any elements that CAN be the
// root of the DOM. However, it's required by spec (see point 1 of
// https://dom.spec.whatwg.org/#dom-childnode-remove) and would
// theoretically make a difference if somebody .apply()ed this
...
On delete cascade with doctrine2
...rine's cascade={"remove"} removes the related entities before removing the root entity (it has to). So when the root entity is deleted there aren't any foreign relations left for onDelete="CASCADE" to delete. But to be sure I would suggest you simply create a small test case and look at the queries ...
Finding the number of days between two dates
...also hour-minute-second; same happpens with DATE type in databases such as MySQL), the widely used formula
(unix_timestamp(DATE2) - unix_timestamp(DATE1)) / 86400
or
floor(time() - strtotime($somedate)) / 86400
will return, say, 17 when DATE1 and DATE2 are in the same DST segment of the year...
