大约有 30,000 项符合查询结果（耗时：0.0290秒） [XML]
SQL Server: Filter output of sp_who2
...
based on http://web.archive.org/web/20080218124946/http://sqlserver2005.databases.aspfaq.com/how-do-i-mimic-sp-who2.html
i have created following script , which resolves finding active connections to any datbase using DMV this works ...
Sort array of objects by single key with date value
...j = _.sortBy(arrObj,"updated_at");
_.sortBy() returns a new array
refer http://underscorejs.org/#sortBy and
lodash docs https://lodash.com/docs#sortBy
share
|
improve this answer
|
...
Format numbers to strings in Python
... tax: $14.07'
>>> d = {'web': 'user', 'page': 42}
>>> 'http://xxx.yyy.zzz/%(web)s/%(page)d.html' % d
'http://xxx.yyy.zzz/user/42.html'
Here are the equivalent snippets but using str.format():
>>> "Name: {0}, age: {1}".format('John', 35)
'Name: John, age: 35'
>&...
Allow user to set up an SSH tunnel, but nothing else
...or\r\n"
while [ true ] ; do
sleep 1000
done
exit 0
Fully explained here: http://blog.flowl.info/2011/ssh-tunnel-group-only-and-no-shell-please/
share
|
improve this answer
|
...
Script parameters in Bash
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
Why do I get “Procedure expects parameter '@statement' of type 'ntext/nchar/nvarchar'.” when I try t
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
iPhone Simulator - Simulate a slow connection?
...
An app called SpeedLimit
https://github.com/mschrag/speedlimit
Works great.
chris.
share
|
improve this answer
|
follow
...
Add unique constraint to combination of two columns
... to insert the row and returning an exception (exceptions are expensive).
http://www.sqlperformance.com/2012/08/t-sql-queries/error-handling
http://www.mssqltips.com/sqlservertip/2632/checking-for-potential-constraint-violations-before-entering-sql-server-try-and-catch-logic/
If you want to preve...
Date format Mapping to JSON Jackson
...u want predicted result. I have found real good tutorial and solution here http://www.baeldung.com/jackson-serialize-dates
There are examples for Date fields but I needed for Calendar fields so here is my implementation:
The serializer class:
public class CustomCalendarSerializer extends JsonSeri...
STL中map容器使用自定义key类型报错详解 - C/C++ - 清泛网 - 专注C/C++及内核技术
...是默认的使用了less进行比较。
关于这个_Pr详解可见：http://www.cnblogs.com/zjfdlut/archive/2011/08/12/2135698.html
解决方法
好了，知道了出错原因，我们就自己重载<操作符了：
bool operator<(const a& a1, const a& a2)
{
if ( a1.m_a>=a2.m_a )
...