大约有 14,600 项符合查询结果（耗时：0.0593秒） [XML]
How to test an SQL Update statement before running it?
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@see https://dev.mysql.com/doc/refman/5.0/en/commit.html
For example:
START TRANSACTION;
SELECT * FROM nicetable WHERE somthing=1;
UPDATE nicetable SET nicefield='VALUE' WHERE somthing=1;
SELECT * FROM nicetable WHERE somthing=1; #check
COMMIT;
# or if you want to reset changes
ROLLBACK;
SEL...
Create a date from day month and year with T-SQL
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You don't have to start with zero and add days. You can start directly with @DayOfMonth-1, then add the months and years. That's one less DateAdd()!
– brianary
Dec 22 '11 at 23:31
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Should I use Java date and time classes or go with a 3rd party library like Joda Time?
...ant to reuse a single formatter through the application
You'll have a head-start on learning java.time in Java 8, as they're at least somewhat similar
Cons:
It's another API to learn (although the docs are pretty good)
It's another library to build against and deploy
When you use Java 8, there's...
Deleting array elements in JavaScript - delete vs splice
...rray[0]
undefined
> myArray
[empty, "b", "c", "d"]
myArray.splice(start, deleteCount) actually removes the element, reindexes the array, and changes its length.
> myArray = ['a', 'b', 'c', 'd']
["a", "b", "c", "d"]
> myArray.splice(0, 2)
["a", "b"]
> myArray
["c", "d"]
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Comparison of CI Servers? [closed]
... There is probably a reason it is not mentioned... My 2 cents: just started working on the project that uses it, we are trying to improve our automation and establish delivery pipeline...but each now and then CI "runs out of minutes" and guess what...you need to pay for some minutes. That is...
Why does setTimeout() “break” for large millisecond delay values?
...,
execTime: null,
_timeout : null,
/**
* Initialize and start timer
*/
init : function() {
this.checkTimer();
},
/**
* Get the time of the callback execution should happen
*/
getExecTime : function() {
return this.execTime;
},
...
How to use glob() to find files recursively?
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Starting with Python 3.4, one can use the glob() method of one of the Path classes in the new pathlib module, which supports ** wildcards. For example:
from pathlib import Path
for file_path in Path('src').glob('**/*.c'):
...
Strip whitespace from jsp output
...e" %>
Or in the jsp-config section your web.xml (Note that this works starting from servlet specification 2.5.):
<jsp-config>
<jsp-property-group>
<url-pattern>*.jsp</url-pattern>
<trim-directive-whitespaces>true</trim-directive-whitespaces>
<...
Giving UIView rounded corners
...give a bit more visual explanation for why things do what they do.
If you start with a regular UIView it has square corners.
let blueView = UIView()
blueView.frame = CGRect(x: 100, y: 100, width: 100, height: 50)
blueView.backgroundColor = UIColor.blueColor()
view.addSubview(blueView)
You can ...
Array Size (Length) in C#
... good but I feel it should be linked to automatically somehow. Can't they start a "answers worth viewing" page? One thing that I would add though is that one should check stack overflow itself before posting the question. Often times I just start posting the question and then see the related ques...