大约有 44,000 项符合查询结果(耗时:0.0462秒) [XML]
SQL Server: Examples of PIVOTing String data
					...l as numbers. This query  will only require the table to be scanned once.
SELECT Action,
       MAX( CASE data WHEN 'View' THEN data ELSE '' END ) ViewCol, 
       MAX( CASE data WHEN 'Edit' THEN data ELSE '' END ) EditCol
 FROM t
 GROUP BY Action
    
    
        
            
            
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							How to modify memory contents using GDB?
					...           also, set (str[6]) = 'c' works, in case you have an array, like char str[]
                
– xealits
                Sep 24 at 13:38
            
        
    
            
	    
        
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							How to create a listbox in HTML without allowing multiple selection?
					...eate a simple listbox, but one of the requirements is to DISALLOW multiple selection. Most of the code for listboxes goes like this - 
                    
                    
                        
                            
                                
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							textarea's rows, and cols attribute in CSS
					...you use "em" rather than "px" then you can specify the width and height in characters as you would with 'rows' and 'cols' attributes. Even works with IE6 I believe.
                
– Swanny
                Feb 11 '14 at 21:36
                        
                            
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							Android emulator-5554 offline
					...ll search for ports in use starting with 565. Execute: netstat -a -n -o |  Select-String ":565"
PS C:\Users\CJBS> netstat -a -n -o |  Select-String ":565"
  TCP    127.0.0.1:5653         127.0.0.1:5653         ESTABLISHED     5944
  TCP    127.0.0.1:5657         127.0.0.1:5657         ESTABL...				
				
				
							How to choose the id generation strategy when using JPA and Hibernate
					...d
uses a database-generated GUID string on MS SQL Server and MySQL.
native
selects identity, sequence or hilo depending upon the capabilities of the underlying database.
assigned
lets the application assign an identifier to the object before save() is called. This is the default strategy if no  elem...				
				
				
							JOIN two SELECT statement results
					Is it possible to join the results of 2 sql  SELECT  statements in one statement?
I have a database of tasks where each record is a separate task, with deadlines (and a  PALT , which is just an  INT  of days from start to deadline.   Age  is also an  INT  number of days.)
                    
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							HTML - Display image after selecting filename [duplicate]
					I have a form that allows me with 
                    
                    
                        
                            
                                
                                        3 Answers
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							OnNotify函数 ON_NOTIFY消息总结 - C/C++ - 清泛网 - 专注C/C++及内核技术
					...,我们实现下自定义notify.
1.定义通知类型:
#define WM_GRID_SELECT_CHANGE(WM_USER + 1)
2.增加消息映射函数,并实现:
afx_msg void OnNotifyGridChanged(NMHDR *pNMHDR, LRESULT *pResult);
3.增加映射对应关系:
ON_NOTIFY(WM_GRID_SELECT_CHANGE, GRIDCTRL_ID, &CContrad...				
				
				
							How to find a table having a specific column in postgresql
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you can query system catalogs:
select c.relname
from pg_class as c
    inner join pg_attribute as a on a.attrelid = c.oid
where a.attname = <column name> and c.relkind = 'r'
sql fiddle demo
    
    
        
            
            
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