大约有 46,000 项符合查询结果(耗时:0.0768秒) [XML]

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Mysql - How to quit/exit from stored procedure

... can you leave and return a value? – ygaradon Apr 8 '14 at 10:28 36 ...
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How to style the parent element when hovering a child element?

... Well, this question is asked many times before, and the short typical answer is: It cannot be done by pure CSS. It's in the name: Cascading Style Sheets only supports styling in cascading direction, not up. But in most circumstances where this effect is wished, like in th...
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Strtotime() doesn't work with dd/mm/YYYY format

... str_replace mentioned in another answer, as well as self-parsing the date string into another format like $subject = '23/05/2010'; $formatted = vsprintf('%3$04d/%2$02d/%1$02d', sscanf($subject,'%02d/%02d/%04d')); $timestamp = strtotime($formatted); ...
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Importing variables from another file?

... from file1 import * will import all objects and methods in file1 share | improve this answer | follow | ...
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Shell command to sum integers, one per line?

...rz1<rp does the following: [ interpret everything to the next ] as a string + push two values off the stack, add them and push the result z push the current stack depth 1 push one <r pop two values and execute register r if the original top-of-stack (1) is smaller ] e...
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How to see the changes between two commits without commits in-between?

... The advantage of using git apply vs. patch is you can include renames and some other changes that are specific to git. I like using git format-patch and git am. – Russell Jun 12 '12 at 11:23 ...
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Get top 1 row of each group

...nt to: maintain status in 2 places preserve status history ... As it stands, you preserve status history. If you want latest status in the parent table too (which is denormalisation) you'd need a trigger to maintain "status" in the parent. or drop this status history table. ...
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How to implement onBackPressed() in Fragments?

Is there a way in which we can implement onBackPressed() in Android Fragment similar to the way in which we implement in Android Activity? ...
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To underscore or to not to underscore, that is the question

... context of the current instance Example public class Demo { private String name; public Demo(String name) { this.name = name; } } Why does the underscore-notation exist? Some people don't like typing "this", but they still need a way to distinguish a field and a parameter, so ...
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Why doesn't java.lang.Number implement Comparable? [duplicate]

...programmers could override. This is no excuse. The same problem exists for Strings when it comes to empty strings or null references. Is a null reference greater than or less than the string "foo"? Sun picked an ordering that makes sense. – Jason Dec 2 '15 at 1...