大约有 15,520 项符合查询结果（耗时：0.0201秒） [XML]
SQL error “ORA-01722: invalid number”
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Well it also can be :
SELECT t.col1, t.col2, ('test' + t.col3) as test_col3
FROM table t;
where for concatenation in oracle is used the operator || not +.
In this case you get : ORA-01722: invalid number ...
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Git-Based Source Control in the Enterprise: Suggested Tools and Practices?
...work:
committing incomplete changes, that
may not even compile or pass tests, to
your local repository. Again you could
do this on a developer branch in
Subversion, but the fact that such
branches are in the shared space makes
people less likely to do so.
DVCS enables flexible workfl...
Is quitting an application frowned upon?
...ey don't want me to make such major changes to their engine, since I can't test the changes on iOS. AND it's simply wrong: There's nothing "bad" about using Singleton patterns for appropriate objects. Android is just broken WRT NDK apps.
– SomeCallMeTim
Oct 30 ...
Run a Docker image as a container
...you didn't specify tag_name it will automatically run an image with the 'latest' tag.
Instead of image_name, you can also specify an image ID (no tag_name).
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Access to the path is denied
...en adds extra checks to generate better messages, but this is an expensive test on a network. Perf is a feature too.
You need to use a name like 'C:\inetpub\wwwroot\mysite\images\savehere\mumble.jpg'. Consider Path.Combine() to reliably generate the path name.
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Prevent user from seeing previously visited secured page after logout
...resence of the logged-in user.
Don't forget to clear browser cache before testing! ;)
See also:
Authentication filter and servlet for login
How to control web page caching, across all browsers?
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access denied for load data infile in MySQL
...cribed by Yamir in his post I couldn't make it work.
The file was in /tmp/test.csv with 777 permissions. The MySQL user had file permissions, LOCAL option was not allowed by my MySQL version, so I was stuck.
Finally I was able to solve the problem by running:
sudo chown mysql:mysql /tmp/test.csv
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How to change position of Toast in Android?
...orizontal, bottom vertical. this effect does not happen on any of my older test devices. I display each message twice in row since any screen taps kill the first toast right away.,
– Androidcoder
Mar 19 '16 at 20:43
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Changing the browser zoom level
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You can use the CSS3 zoom function, but I have not tested it yet with jQuery. Will try now and let you know.
UPDATE: tested it, works but it's fun
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How do I round to the nearest 0.5?
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There are several options. If performance is a concern, test them to see which works fastest in a large loop.
double Adjust(double input)
{
double whole = Math.Truncate(input);
double remainder = input - whole;
if (remainder < 0.3)
{
remainder = 0;
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