按条件判断表内数据,决定是否插入。
比如有这样两个表,	table1,table2	 
 table1有两个字段                                    table2有两个字段 
 fname   	famount		fname   	fmoney 
 aa	100		aa	630 
 aa	200		bb	150 
 aa	300		cc	110 
 bb	200			 
 bb	200			 
 cc	100			 
 cc	100			 
 cc	100			 
 现在要将这两个表里的数据合并到一个表上,如下格式。请问这个语句要怎么写呢? 
 fname   	famount	fmoney		 
 aa		630		 
 aa	100			 
 aa	200			 
 aa	300			 
 bb		150 
 bb	200	 
 bb	200	 
 cc		110 
 cc	100	 
 cc	100	  		    	 
------解决方案--------------------order by fname,famount,fmoney desc
------解决方案--------------------create table tableone 
 ( 
 fname varchar(10), 
 famount varchar(10)   
 )   
 create table tabletwo 
 ( 
 fname varchar(10), 
 fmoney varchar(10)   
 )   
 insert into tableone 
 select  
  'aa '	, '100 '		union all select  
  'aa '	, '200 '		union all select  
  'aa '	, '300 '		union all select  
  'bb '	, '200 '			union all select  
  'bb '	, '200 '		union all select 	 
  'cc '	, '100 '		union all select 	 
  'cc '	, '100 '			union all select  
  'cc '	, '100 '   
 insert into tabletwo 
 select  
  'aa '	, '630 '  union all select  
  'bb '	, '150 '  union all select  
  'cc '	, '110 '   
 select * from( 
 select fname,famount, isnull(null, ' ') fmoney 
 from tableone  
 union all 
 select fname,isnull(null, ' ') as famount,fmoney 
 from tabletwo) A 
 order  by A.fname,fmoney desc 
 --------------------------------------------- 
 fname 	famount	fmoney		 
 aa		630		 
 aa	100			 
 aa	200			 
 aa	300			 
 bb		150 
 bb	200	 
 bb	200	 
 cc		110 
 cc	100	 
 cc	100