大约有 34,900 项符合查询结果（耗时：0.0319秒） [XML]
MySQL select where column is not empty
...mpty string:
select phone, phone2
from jewishyellow.users
where phone like '813%' and phone2<>''
Note that NULL value is interpreted as false.
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Call UrlHelper in models in ASP.NET MVC
I need to generate some URLs in a model in ASP.NET MVC. I'd like to call something like UrlHelper.Action() which uses the routes to generate the URL. I don't mind filling the usual blanks, like the hostname, scheme and so on.
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how to emulate “insert ignore” and “on duplicate key update” (sql merge) with postgresql?
Some SQL servers have a feature where INSERT is skipped if it would violate a primary/unique key constraint. For instance, MySQL has INSERT IGNORE .
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Limit results in jQuery UI Autocomplete
...e source parameter and then call slice on the filtered array.
Here's a working example: http://jsfiddle.net/andrewwhitaker/vqwBP/
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How can I comment a single line in XML?
... comment a line in XML and have the comment end automatically on a linebreak.
XML has only one definition for a comment:
'<!--' ((Char - '-') | ('-' (Char - '-')))* '-->'
XML forbids -- in comments to maintain compatibility with SGML.
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$watch an object
...ant to watch for changes in a dictionary, but for some reason watch callback is not called.
8 Answers
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Reshaping data.frame from wide to long format
...ert my data.frame from a wide table to a long table.
At the moment it looks like this:
9 Answers
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How to get the filename without the extension from a path in Python?
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GeoGeo
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Mixed mode assembly is built against version ‘v2.0.50727′ of the runtime
...untimeActivationPolicy="true">
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0"/>
<requiredRuntime version="v4.0.20506" />
</startup>
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Large Numbers in Java
... for numbers with decimal digits. Both classes are defined in java.math package.
Example:
BigInteger reallyBig = new BigInteger("1234567890123456890");
BigInteger notSoBig = new BigInteger("2743561234");
reallyBig = reallyBig.add(notSoBig);
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