大约有 46,000 项符合查询结果(耗时:0.0665秒) [XML]

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How can I rename a field for all documents in MongoDB?

... and if I'm getting it upsert:true will create field name if field name does not exists, defaults to false. – IGRACH Jan 1 '15 at 21:43 ...
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CKEditor instance already exists

...rst one was not displaying but the other two where, I added the above code and all teh editors now appear – Craig Angus Apr 29 '10 at 15:56 18 ...
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MySQL Select all columns from one table and some from another table

How do you select all the columns from one table and just some columns from another table using JOIN? In MySQL. 4 Answers ...
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@ variables in Ruby on Rails

What's the difference between @title and title ? Since both of them can be variable names. Also, how do I decide which kind of variable I should use? With @ or not? ...
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Why use pointers? [closed]

...hing else. In C you don't have any support for complex datatypes such as a string. There are also no way of passing a variable "by reference" to a function. That's where you have to use pointers. Also you can have them to point at virtually anything, linked lists, members of structs and so on. But l...
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Bind TextBox on Enter-key press

...vate Sub ExecuteUpdateText1(ByVal param As Object) If TypeOf param Is String Then Txt1 = CType(param, String) End If End Sub And the TextBox is bound to the Property Public Property Txt1 As String Get Return _txt1 End Get Set(value As String) _txt1 = ...
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Can I mix MySQL APIs in PHP?

...tell me today that they've no problem/errors when mixing mysql_real_escape_string() with what the rest of their code being PDO. Is there something I didn't get here in my time with working with these different APIs? Am I the ignorant one here? This being for the "now deleted" question stackoverflow....
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Select rows which are not present in other table

... There are basically 4 techniques for this task, all of them standard SQL. NOT EXISTS Often fastest in Postgres. SELECT ip FROM login_log l WHERE NOT EXISTS ( SELECT -- SELECT list mostly irrelevant; can just be empty in Postgres FROM ip_location WHERE ip = l.ip ...
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Search an Oracle database for tables with specific column names?

...swered Dec 23 '09 at 15:06 Tony AndrewsTony Andrews 119k1919 gold badges207207 silver badges246246 bronze badges ...
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Is it possible to set the equivalent of a src attribute of an img tag in CSS?

...jpg"); } </style> <img class="MyClass123"/> Tested and working: Chrome 14.0.835.163 Safari 4.0.5 Opera 10.6 Tested and Not working: FireFox 40.0.2 (observing Developer Network Tools, you can see that the URL loads, but the image is not displayed) Internet Explorer 11...