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Why do I get “Procedure expects parameter '@statement' of type 'ntext/nchar/nvarchar'.” when I try t
...ive the error because @SQL needs to be NVARCHAR
DECLARE @SQL VARCHAR(100)
SET @SQL = 'SELECT TOP 1 * FROM sys.tables'
EXECUTE sp_executesql @SQL
So:
DECLARE @SQL NVARCHAR(100)
SET @SQL = 'SELECT TOP 1 * FROM sys.tables'
EXECUTE sp_executesql @SQL
...
Comparing boxed Long values 127 and 128
... Integer objects instances from the range -128 to 127. That said:
If you set to N Long variables the value 127 (cached), the same object instance will be pointed by all references. (N variables, 1 instance)
If you set to N Long variables the value 128 (not cached), you will have an object instance...
Create, read, and erase cookies with jQuery [duplicate]
...
Use JavaScript Cookie plugin
Set a cookie
Cookies.set("example", "foo"); // Sample 1
Cookies.set("example", "foo", { expires: 7 }); // Sample 2
Cookies.set("example", "foo", { path: '/admin', expires: 7 }); // Sample 3
Get a cookie
alert( Cookies.get("e...
Python argparse mutual exclusive group
... -a: ...
command 2
-b: ...
-c: ...
To invoke with the first set of arguments:
prog command_1 -a xxxx
To invoke with the second set of arguments:
prog command_2 -b yyyy -c zzzz
You can also set the sub command arguments as positional.
prog command_1 xxxx
Kind of like git or sv...
error: Unable to find vcvarsall.bat
... Visual C++ is not installed.
For Windows installations:
While running setup.py for package installations, Python 2.7 searches for an installed Visual Studio 2008. You can trick Python to use a newer Visual Studio by setting the correct path in VS90COMNTOOLS environment variable before calling s...
Batch files - number of command line arguments
...
Googling a bit gives you the following result from wikibooks:
set argC=0
for %%x in (%*) do Set /A argC+=1
echo %argC%
Seems like cmd.exe has evolved a bit from the old DOS days :)
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Drop multiple tables in one shot in mysql
...
SET foreign_key_checks = 0;
DROP TABLE IF EXISTS a,b,c;
SET foreign_key_checks = 1;
Then you do not have to worry about dropping them in the correct order, nor whether they actually exist.
N.B. this is for MySQL only (as i...
UITextField - capture return button event
... [textField resignFirstResponder];
return NO;
}
Don't forget to set the delegate in storyboard...
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ListCtrl 重绘（Custom Draw） - C/C++ - 清泛网 - 专注C/C++及内核技术
... grayed, 等等）
l Item的LPARAM值，就是你使用CListCtrl::SetItemData所设的那个值
上述所有的信息对你来说可能都很重要，这取决于你想实现什么效果，但最经常用到的就是“绘画段”、“绘画ＤＣ”、“Item Index”、“LPARAM”这...
Where does git config --global get written to?
When using git config --global to set things up, to which file will it write?
17 Answers
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