大约有 47,000 项符合查询结果(耗时:0.0494秒) [XML]

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How to concatenate strings of a string field in a PostgreSQL 'group by' query?

...at the question asked for, even letting you specify the delimiter string: SELECT company_id, string_agg(employee, ', ') FROM mytable GROUP BY company_id; Postgres 9.0 also added the ability to specify an ORDER BY clause in any aggregate expression; otherwise, the order is undefined. So you can no...
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How can I do SELECT UNIQUE with LINQ?

...e.MainTable where dbo.Property == true select dbo.Color.Name).Distinct().OrderBy(name=>name); share | improve this answer | follow ...
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Setting mime type for excel document

... I believe the standard MIME type for Excel files is application/vnd.ms-excel. Regarding the name of the document, you should set the following header in the response: header('Content-Disposition: attachment; filename="name_of_excel_file.x...
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How to ignore SVN folders in WinMerge?

...ersion housekeeping directories d: \\.svn$ d: \\._svn$ Save it, then when selecting items to merge, select the filter you defined from the Select Files or Folders dialog box. Bonus points: It will save this and use it as a default for future merges. ...
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SQL: capitalize first letter only [duplicate]

...t only for displaying and do not need the actual data in table to change: SELECT UPPER(LEFT(word,1))+LOWER(SUBSTRING(word,2,LEN(word))) FROM [yourtable] Hope this helps. EDIT: I realised about the '-' so here is my attempt to solve this problem in a function. CREATE FUNCTION [dbo].[CapitalizeFi...
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How to find the Number of CPU Cores via .NET/C#?

...ors: foreach (var item in new System.Management.ManagementObjectSearcher("Select * from Win32_ComputerSystem").Get()) { Console.WriteLine("Number Of Physical Processors: {0} ", item["NumberOfProcessors"]); } Cores: int coreCount = 0; foreach (var item in new System.Management.ManagementObjec...
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How to alter SQL in “Edit Top 200 Rows” in SSMS 2008

...008 Management Studio, when I right click on a database table and choose " Select Top 100 Rows ", I can then e.g. easily add a "ORDER BY " statement to the SQL. That works fine . ...
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How do we count rows using older versions of Hibernate (~2009)?

...eturn int and use this form: int count = ((Long)getSession().createQuery("select count(*) from Book").uniqueResult()).intValue(); share | improve this answer | follow ...
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PostgreSQL query to return results as a comma separated list

Let say you have a SELECT id from table query (the real case is a complex query) that does return you several results. 5 ...
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Remove the cell highlight color of UITableView

I want to remove the default blue color of uitableview cell selection. I don't want any selection color there. I have not created a custom cell class. I'm customizing the cell by adding labels and buttons over it. I tried doing: ...