大约有 48,000 项符合查询结果(耗时:0.0871秒) [XML]

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What GRANT USAGE ON SCHEMA exactly do?

...a schema doesn't grant rights on the tables within. If you have rights to SELECT from a table, but not the right to see it in the schema that contains it then you can't access the table. The rights tests are done in order: Do you have `USAGE` on the schema? No: Reject access. Yes: Do...
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Copying text with color from Notepad++

... In NPP v6.7.7 you can do this by selecting your text, right clicking on it, select "Plugin commands" and then "Copy text with syntax highlighting". share | ...
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Is it possible to Pivot data using LINQ?

...t = GetCustData(); var query = myList .GroupBy(c => c.CustId) .Select(g => new { CustId = g.Key, Jan = g.Where(c => c.OrderDate.Month == 1).Sum(c => c.Qty), Feb = g.Where(c => c.OrderDate.Month == 2).Sum(c => c.Qty), March = g.Where(c => ...
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Select distinct values from a table field

...tart with the fields in distinct(), in the same order. For example, SELECT DISTINCT ON (a) gives you the first row for each value in column a. If you don’t specify an order, you’ll get some arbitrary row. If you want to e-g- extract a list of cities that you know shops in , the exam...
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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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LEFT OUTER joins in Rails 3

...OUTER JOIN users ON users.id = posts.user_id"). joins(:blog).select share | improve this answer | follow | ...
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How to print from GitHub

... Here's a super simple solution: Simply select all the text in the readme that you want to print, then print and choose "Only selected text". This worked perfectly in Chrome (including images) and required no javascript or external sites or downloading or buildin...
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Reading Excel files from C#

...ed Properties=Excel 8.0;", fileName); var adapter = new OleDbDataAdapter("SELECT * FROM [workSheetNameHere$]", connectionString); var ds = new DataSet(); adapter.Fill(ds, "anyNameHere"); DataTable data = ds.Tables["anyNameHere"]; This is what I usually use. It is a little different because I u...
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Create code first, many to many, with additional fields in association table

...OfMembers = context.Members .Where(m => m.LastName == "Smith") .SelectMany(m => m.MemberComments.Select(mc => mc.Comment)) .ToList(); ... or ... var commentsOfMembers = context.MemberComments .Where(mc => mc.Member.LastName == "Smith") .Select(mc => mc.Comment) ...
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XPath to select Element by attribute value

...he parts in [ ]) shouldn't have slashes immediately before them. Also, to select the Employee element itself, you should leave off the /text() at the end or otherwise you'd just be selecting the whitespace text values immediately under the Employee element. //Employee[@id='4'] Edit: As Jens poin...