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Entity Framework. Delete all rows in table
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var all = from c in dataDb.Table select c;
dataDb.Table.RemoveRange(all);
dataDb.SaveChanges();
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How do I add an existing directory tree to a project in Visual Studio?
...x. After that, the added directory will be shown up. You will then need to select this directory, right click, and choose "Include in Project."
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How to add to the PYTHONPATH in Windows, so it finds my modules/packages?
...Explorer.
Right-click 'Computer' in the Navigation Tree Panel on the left.
Select 'Properties' at the bottom of the Context Menu.
Select 'Advanced system settings'
Click 'Environment Variables...' in the Advanced Tab
Under 'System Variables':
Add
PY_HOME
C:\Python27
PYTHONPATH
%PY_HOME%\Lib;%...
postgres: upgrade a user to be a superuser?
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SELECT rolname, rolsuper FROM pg_roles; to @masterweily
– caulfield
May 30 '13 at 11:44
6
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How do you run a SQL Server query from PowerShell?
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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
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Resize image in the wiki of GitHub using Markdown
...files)
Go to the "Write Comment" box at the end
Click "Attach files ... by selecting them"; select your local image file
GitHub echos a long long string where it put the image, e.g.
 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...
How do I dump the data of some SQLite3 tables?
...SOME_STRING' for something other than a comma.
.headers on
.out file.csv
select * from MyTable;
If you want to reinsert into a different SQLite database then:
.mode insert <target_table_name>
.out file.sql
select * from MyTable;
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