大约有 44,000 项符合查询结果(耗时:0.0169秒) [XML]

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How can I remove or replace SVG content?

... Here is the solution: d3.select("svg").remove(); This is a remove function provided by D3.js. share | improve this answer | ...
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How to get an object's property's value by property name?

... Sure write-host ($obj | Select -ExpandProperty "SomeProp") Or for that matter: $obj."SomeProp" share | improve this answer | ...
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Reshaping data.frame from wide to long format

... Here is another example showing the use of gather from tidyr. You can select the columns to gather either by removing them individually (as I do here), or by including the years you want explicitly. Note that, to handle the commas (and X's added if check.names = FALSE is not set), I am also us...
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SQL SELECT speed int vs varchar

...k: A=261MB B=292MB C=322MB Non-indexed by id: select count(*), select by id: 450ms same on all tables Insert* one row per TX: B=9ms/record C=9ms/record Bulk insert* in single TX: B=140usec/record C=180usec/record Indexed by id, select by id: B=about 2...
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How do I see active SQL Server connections?

... when you have to filter for specific db selecting from sys.sysprocesses is better – Iman Dec 2 '13 at 4:29 2 ...
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How to determine the number of days in a month in SQL Server?

...er of days in the month. DECLARE @ADate DATETIME SET @ADate = GETDATE() SELECT DAY(EOMONTH(@ADate)) AS DaysInMonth share | improve this answer | follow | ...
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How can I convert bigint (UNIX timestamp) to datetime in SQL Server?

... SET @AdjustedLocalDatetime = @Datetime - @LocalTimeOffset RETURN (SELECT DATEADD(second,@AdjustedLocalDatetime, CAST('1970-01-01 00:00:00' AS datetime))) END; GO share | improve this answe...
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Is the LIKE operator case-sensitive with MSSQL Server?

...en-us/library/ms144250(v=sql.105).aspx (a) To check a instance collation select serverproperty('collation') (b) To check a database collation select databasepropertyex('databasename', 'collation') sqlcollation (c) To create a database using a different collation create database exampledataba...
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Select something that has more/less than x character

Was wondering if it's possible to select something that has more/less than x characters in SQL. 4 Answers ...
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How to add ASP.NET 4.0 as Application Pool on IIS 7, Windows 7

...t to Windows 7. One of the things that I need to run the application is to select ASP.NET v4.0 as the application pool within IIS. ...