大约有 30,000 项符合查询结果（耗时：0.0446秒） [XML]
LEN function not including trailing spaces in SQL Server
...p voted answers. The answer recommending DATALENGTH is prone to programmer errors. The result of DATALENGTH must be divided by the 2 for NVARCHAR types, but not for VARCHAR types. This requires knowledge of the type you're getting the length of, and if that type changes, you have to diligently chang...
Simplest/Cleanest way to implement singleton in JavaScript?
... //and refer to the same instance. Another option is to
//throw an error.
return Foo._instance;
}
Foo._instance = this;
//Foo initialization code
};
Foo.getInstance = function () {
"use strict";
return Foo._instance || new Foo();
}
long form, using module pattern...
CMake: Print out all accessible variables in a script
I'm wondering if there is a way to print out all accessible variables in CMake. I'm not interested in the CMake variables - as in the --help-variables option. I'm talking about my variables that I defined, or the variables defined by included scripts.
...
What is the $? (dollar question mark) variable in shell scripting? [duplicate]
...
Not just error code. It's the returned status code of any command.
– mehulkar
Jul 8 '14 at 17:44
10
...
Python, Unicode, and the Windows console
... try to print a Unicode string in a Windows console, I get a UnicodeEncodeError: 'charmap' codec can't encode character .... error. I assume this is because the Windows console does not accept Unicode-only characters. What's the best way around this? Is there any way I can make Python automatical...
How to remove all MySQL tables from the command-line without DROP database permissions? [duplicate]
...evart's version is correct, but here are some improvements to avoid having error. I've edited the @Devart's answer, but it was not accepted.
SET FOREIGN_KEY_CHECKS = 0;
SET GROUP_CONCAT_MAX_LEN=32768;
SET @tables = NULL;
SELECT GROUP_CONCAT('`', table_name, '`') INTO @tables
FROM information_sche...
Simplest SOAP example
...onseText always results as null.can u provide me somelinks to overcome the error
– user969275
Nov 19 '12 at 11:26
Link...
Clang vs GCC for my Linux Development project
...class, right :) ?
Well, gcc notices it too, after a fashion:
prog.cpp:9: error: expected initializer before ‘&’ token
prog.cpp: In function ‘int main()’:
prog.cpp:15: error: no match for ‘operator<<’ in ‘std::cout << me’
/usr/lib/gcc/i686-pc-linux-gnu/4.3.4/include/...
VBA - how to conditionally skip a for loop iteration
...write robust VBA without the Goto statement simply because you need it for error handling (i.e., On Error Goto).
– mwolfe02
Feb 25 '15 at 0:55
...
What are the differences between the BLOB and TEXT datatypes in MySQL?
What is blob and what is text ? What are the differences?
6 Answers
6
...