大约有 47,000 项符合查询结果（耗时：0.0915秒） [XML]
Query to list number of records in each table in a database
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If you're using SQL Server 2005 and up, you can also use this:
SELECT
t.NAME AS TableName,
i.name as indexName,
p.[Rows],
sum(a.total_pages) as TotalPages,
sum(a.used_pages) as UsedPages,
sum(a.data_pages) as DataPages,
(sum(...
How do you reference a capture group with regex find and replace in Visual Studio 2012, 2013, 2015,
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To find and replace in VS 2012 and VS 2015 you do the following:
Surround with (), display capture with $1, $2, $n
Example (thanks to syonip)
In the find options, make sure 'use regular expressions' is checked, and put the follo...
How can I get around MySQL Errcode 13 with SELECT INTO OUTFILE?
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Which particular version of Ubuntu is this and is this Ubuntu Server Edition?
Recent Ubuntu Server Editions (such as 10.04) ship with AppArmor and MySQL's profile might be in enforcing mode by default. You can check this by executing sudo aa-status like so:
# sudo a...
How to calculate moving average without keeping the count and data-total?
...d a way to calculate a moving cumulative average without storing the count and total data that is received so far.
8 Answer...
Change an HTML5 input's placeholder color with CSS
...here are three different implementations: pseudo-elements, pseudo-classes, and nothing.
WebKit, Blink (Safari, Google Chrome, Opera 15+) and Microsoft Edge are using a pseudo-element: ::-webkit-input-placeholder. [Ref]
Mozilla Firefox 4 to 18 is using a pseudo-class: :-moz-placeholder (one colon)....
T-SQL: Using a CASE in an UPDATE statement to update certain columns depending on a condition
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I know this is a very old question and the problem is marked as fixed. However, if someone with a case like mine where the table have trigger for data logging on update events, this will cause problem. Both the columns will get the update and log will make use...
What XML parser should I use in C++? [closed]
I have XML documents that I need to parse and/or I need to build XML documents and write them to text (either files or memory). Since the C++ standard library does not have a library for this, what should I use?
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CSS does the width include the padding?
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IE used to use the more-convenient-but-non-standard "border-box" box model. In this model, the width of an element includes the padding and borders. For example:
#foo { width: 10em; padding: 2em; border: 1em; }
would be 10em wide.
In contrast, all standards-fearing brow...
Can you turn off Peek Definition in Visual Studio 2013 and up?
In Visual Studio 2013 and up, there is the Peek Definition feature when you Ctrl + Click. At first I thought this was cool, but I have found that the majority of the time, I need to click the Promote to Document button, since I make lots of changes to the files I Ctrl + Click on. But after Googl...
How to sort an array of associative arrays by value of a given key in PHP?
...for is array_multisort().
Here's an example taken straight from the manual and adapted to your case:
$price = array();
foreach ($inventory as $key => $row)
{
$price[$key] = $row['price'];
}
array_multisort($price, SORT_DESC, $inventory);
As of PHP 5.5.0 you can use array_column() instead of ...