SQL的東西，凝聚

Question

你好，我只是想知道的東西.. 說我有這個下面的查詢..

DECLARE @earninglist varchar(1000) 
     Set @earninglist=STUFF((SELECT DISTINCT '],[' 
      +LTRIM([Description]) FROM 
      PR_Earnings 
      ORDER BY '],[' + LTRIM([Description]) 
         FOR XML PATH('') 
         ), 1, 2, '')+']' 

Declare @sql varchar(max) 
set @sql='Select '+@earninglist+' from earnings;' 
exec(@sql); 

說，收入列表包含此字段：「可口可樂」，「激勵」 哪有我宣佈@earninglist，這樣我可以得到這個下面的查詢：使用的東西..請幫助

set @sql='Select Coalesce([Cola],0)Cola,Coalesce([Incentives],0)Incentives from earnings' 

..

嗯..如果您發現該@earninglist第一套@sql ..它會變成這樣：'Select [Cola],[Incentives] from earnings'我想要做的是使@earninglist的結果集是這樣的：'Select Coalesce([Cola],0)Cola,Coalesce([Incentives],0)Incentives from earnings' ..是否有可能？

Answer 1

嘗試爲：

DECLARE @earninglist varchar(1000) 
     Set @earninglist=STUFF((SELECT DISTINCT '],Coalesce([' +LTRIM([Description])+'],0)['+LTRIM([Description]) FROM 
      PR_Earnings 
      ORDER BY '],Coalesce([' +LTRIM([Description])+'],0)['+LTRIM([Description]) 
         FOR XML PATH('') 
         ), 1, 2, '')+']' 

Declare @sql varchar(max) 
set @sql='Select '+@earninglist+' from earnings;' 
exec (@sql);