大约有 45,000 项符合查询结果(耗时:0.0352秒) [XML]

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How to use DISTINCT and ORDER BY in same SELECT statement?

..., and use a GROUP BY to make the DISTINCT work. Try something like this: SELECT DISTINCT Category, MAX(CreationDate) FROM MonitoringJob GROUP BY Category ORDER BY MAX(CreationDate) DESC, Category share | ...
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Long-lasting FB access-token for server to pull FB page info

...page admin) Head over to the Facebook Graph API Explorer On the top right, select the FB App you created from the "Application" drop down list Click "Get Access Token" Make sure you add the manage_pages permission Convert this short-lived access token into a long-lived one by making this Graph API c...
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Why does base64 encoding require padding if the input length is not divisible by 3?

... either have to decode 4 bytes at a time or split the string after padding characters. It seems like those implementations just ignore the padding chars, even when they are in the middle of a string. – Roman May 30 at 7:02 ...
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Nesting await in Parallel.ForEach

..., "2", "3", "4", "5", "6", "7", "8", "9", "10" }; var customerTasks = ids.Select(i => { ICustomerRepo repo = new CustomerRepo(); return repo.GetCustomer(i); }); var customers = await Task.WhenAll(customerTasks); foreach (var customer in customers) { Console.WriteLine(customer.ID);...
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MySQL Multiple Joins in one query?

... You can simply add another join like this: SELECT dashboard_data.headline, dashboard_data.message, dashboard_messages.image_id, images.filename FROM dashboard_data INNER JOIN dashboard_messages ON dashboard_message_id = dashboard_messages.id INNER JO...
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What do querySelectorAll and getElementsBy* methods return?

...sByClassName (and similar functions like getElementsByTagName and querySelectorAll ) work the same as getElementById or do they return an array of elements? ...
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Current executing procedure name

... You may try this: SELECT OBJECT_NAME(@@PROCID) Update: This command is still valid on SQL Server 2016. share | improve this answer ...
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Cannot resolve the collation conflict between “SQL_Latin1_General_CP1_CI_AS” and “Latin1_General_CI_

...eck what collations each column in your table(s) has by using this query: SELECT col.name, col.collation_name FROM sys.columns col WHERE object_id = OBJECT_ID('YourTableName') Collations are needed and used when ordering and comparing strings. It's generally a good idea to have a sin...
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“Undefined reference to” template class constructor [duplicate]

...e in order to ensure this problem never happens! (cola<int>, cola<char>, cola<ostream>, cola< cola<int> > ... and so on ...) The two answers are: Tell the compiler, at the end of cola.cpp, which particular template classes will be required, forcing it to compile cola...
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How to delete selected text in the vi editor

I am using PuTTY and the vi editor. If I select five lines using my mouse and I want to delete those lines, how can I do that? ...