Question

你好，我只想知道一些事情...... 说我有以下查询..

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);

说收入清单包含以下字段：'Cola'，'Incentives' 如何声明@earninglist以便我可以获得以下查询：

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

使用东西..请帮忙..

嗯......如果你注意到第一组@sql中的@earninglist，它将会是这样的：'Select [Cola],[Incentives] from earnings'我想做的是让@earninglist的结果集成为像这样：'Select Coalesce([Cola],0)Cola,Coalesce([Incentives],0)Incentives from earnings' ..有可能吗？

Answer 1

尝试：

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);

SQL的东西和合并

1 个答案: