大约有 47,000 项符合查询结果(耗时:0.0309秒) [XML]

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powershell - extract file name and extension

...tated, use the BaseName and Extension properties: PS C:\> dir *.xlsx | select BaseName,Extension BaseName Extension -------- --------- StackOverflow.com Test Config .xlsx If you are given the file name as part of string...
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What is the best collation to use for MySQL with PHP? [closed]

...ng utf8_general_ci. MySQL will not distinguish between some characters in select statements, if the utf8_general_ci collation is used. This can lead to very nasty bugs - especially for example, where usernames are involved. Depending on the implementation that uses the database tables, this problem...
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'git' is not recognized as an internal or external command

... In the Start Menu or taskbar search, search for "environment variable". Select "Edit the system environment variables". Click the "Environment Variables" button at the bottom. Double-click the "Path" entry under "System variables". With the "New" button in the PATH editor, add C:\Program Files\Gi...
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Add primary key to existing table

...PMID) edit: you can find the constraint name by using the query below: select OBJECT_NAME(OBJECT_ID) AS NameofConstraint FROM sys.objects where OBJECT_NAME(parent_object_id)='Persion' and type_desc LIKE '%CONSTRAINT' sh...
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SQL is null and = null [duplicate]

...e t (x int, y int); insert into t values (null, null), (null, 1), (1, 1); select 'x = null' as test , x, y from t where x = null union all select 'x != null', x, y from t where x != null union all select 'not (x = null)', x, y from t where not (x = null) union all select 'x = y', x, y from t where ...
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Change Placeholder Text using jQuery

... Note for OP: Also note that the change event is hooked to the select box, not the text input. $('#serMemdd').change(function () { – Benjam Feb 10 '12 at 18:51 ...
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Concatenate multiple result rows of one column into one, group by another column [duplicate]

...Simpler with the aggregate function string_agg() (Postgres 9.0 or later): SELECT movie, string_agg(actor, ', ') AS actor_list FROM tbl GROUP BY 1; The 1 in GROUP BY 1 is a positional reference and a shortcut for GROUP BY movie in this case. string_agg() expects data type text as input. Other ...
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PowerShell script to return versions of .NET Framework on a machine?

...ame Version,Release -EA 0 | Where { $_.PSChildName -match '^(?!S)\p{L}'} | Select PSChildName, Version, Release Based on the MSDN article, you could build a lookup table and return the marketing product version number for releases after 4.5: $Lookup = @{ 378389 = [version]'4.5' 378675 = [...
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Can you get the column names from a SqlDataReader?

...GetName(i)); } or var columns = Enumerable.Range(0, reader.FieldCount).Select(reader.GetName).ToList(); share | improve this answer | follow | ...
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Input widths on Bootstrap 3

Update again: I am closing this question by selecting the top answer to keep people from adding answers without really understanding the question. In reality there is no way to do it with the build in functionality without using grid or adding extra css. Grids do not work well if you are dealing wi...