大约有 43,000 项符合查询结果(耗时:0.0368秒) [XML]

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Keyboard shortcut to change font size in Eclipse?

...e the "Text Font" settings), eclipse-fonts won't work. The solution is to select "Java Editor Text Font" in "Preferences / General / Appearance / Colors and Fonts" and press Reset. – AmigoNico Dec 6 '12 at 18:45 ...
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Are there good reasons not to use an ORM? [closed]

...honestly it isn't. Using an ORM tool means the tool/developer can insert, select, update or delete whatever he or she wants. Stored procedures provide a lot more security, especially in environments when dealing with client data. I think this is the biggest reason to consider. Security. ...
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Exception thrown inside catch block - will it be caught again?

...lause of the try statement, then the first (leftmost) such catch clause is selected. The value V is assigned to the parameter of the selected catch clause, and the Block of that catch clause is executed. If that block completes normally, then the try statement completes normally; if that block compl...
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How to execute a raw update sql with dynamic binding in rails

...ch less efficient, isn't it. Doesn't this trade one update statement for a select, bring the records into rails memory, update each record and send an update statement back for each record. 1 update vs 1 per record and much bandwidth, etc.? Does AR optimize this or not? I don't think it does. ...
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SQL Server: Maximum character length of object names

...lowing script contained in the blog post before: DECLARE @i NVARCHAR(800) SELECT @i = REPLICATE('A', 116) SELECT @i = 'CREATE TABLE #'+@i+'(i int)' PRINT @i EXEC(@i) share | improve this answer ...
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How to reset (clear) form through JavaScript?

...) { elements[i].checked = false; } break; case "select-one": case "select-multi": elements[i].selectedIndex = -1; break; default: break; } } } share ...
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How do you run a SQL Server query from PowerShell?

... You can use the Invoke-Sqlcmd cmdlet Invoke-Sqlcmd -Query "SELECT GETDATE() AS TimeOfQuery;" -ServerInstance "MyComputer\MyInstance" http://technet.microsoft.com/en-us/library/cc281720.aspx share |...
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Does Foreign Key improve query performance?

...the foreign key relationship already inforces that for you. So this: select p.ProductId, p.Name, c.CategoryId, c.Name AS Category from Products p inner join ProductCategories c on p.CategoryId = c.CategoryIdwhere c.CategoryId = 1; Becomes this: SELECT p.ProductId, p.Name, c.CategoryId, c.N...
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Determine what attributes were changed in Rails after_save callback?

... The "selected" answer didn't work for me. I'm using rails 3.1 with CouchRest::Model (based on Active Model). The _changed? methods don't return true for changed attributes in the after_update hook, only in the before_update hook. ...
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how to use sed, awk, or gawk to print only what is matched?

... If you want to select lines then strip out the bits you don't want: egrep 'abc[0-9]+xyz' inputFile | sed -e 's/^.*abc//' -e 's/xyz.*$//' It basically selects the lines you want with egrep and then uses sed to strip off the bits before an...