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How do I drop table variables in SQL-Server? Should I even do this?
...clare @tablename varchar(20)
DECLARE @SQL NVARCHAR(MAX)
SET @tablename = '_RJ_TEMPOV4'
SET @SQL = 'DROP TABLE dbo.' + QUOTENAME(@tablename) + '';
IF EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(@tablename) AND type in (N'U'))
EXEC sp_executesql @SQL;
Works fine on SQL Serve...
Creating and Update Laravel Eloquent
...s new/retrieved by using if($user->exists).
– Ryu_hayabusa
Nov 10 '14 at 15:50
1
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Change R default library path using .libPaths in Rprofile.site fails to work
...ry/Frameworks/R.framework/Versions/2.15/Resources/library"
[2] "/Users/user_name/userLibrary"
The .libPaths function is a bit different than most other nongraphics functions. It works via side-effect. The functions Sys.getenv and Sys.setenv that report and alter the R environment variables have ...
How do I find the caller of a method using stacktrace or reflection?
...king the heap and stack. See this bug report: bugs.sun.com/bugdatabase/view_bug.do?bug_id=6375302
– David Moles
Dec 8 '11 at 23:30
7
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How do I view an older version of an SVN file?
...
svn cat -r 666 file > file_666.js if you would like to view that entire file :p
– Parijat Kalia
Sep 24 '13 at 16:22
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Equation for testing if a point is inside a circle
If you have a circle with center (center_x, center_y) and radius radius , how do you test if a given point with coordinates (x, y) is inside the circle?
...
Combining multiple commits before pushing in Git [duplicate]
...ommit from which you want to start squashing and do
git rebase -i <that_commit_id>
Then proceed as described in leopd's answer, changing all the picks to squashes except the first one.
Example:
871adf OK, feature Z is fully implemented --- newer commit --┐
0c3317 Whoops, not yet......
Best way to check if a Data Table has a null value in it
...
I will do like....
(!DBNull.Value.Equals(dataSet.Tables[6].Rows[0]["_id"]))
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Get the current displaying UIViewController on the screen in AppDelegate.m
...ViewController)
}
public static func getVisibleViewControllerFrom(_ vc: UIViewController?) -> UIViewController? {
if let nc = vc as? UINavigationController {
return UIWindow.getVisibleViewControllerFrom(nc.visibleViewController)
} else if let tc = vc as? UITab...
Import / Export database with SQL Server Server Management Studio
...ing options are only available in SSMS 2008+ .
– ivan_pozdeev
Apr 24 '13 at 14:58
2
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