日期:2014-05-18 浏览次数:20477 次
--> 测试数据:[tableA] if object_id('[tableA]') is not null drop table [tableA] create table [tableA]([Id] int,[State] int,[Type] int) insert [tableA] select 1,3,4 union all select 2,2,5 union all select 3,1,2 union all select 4,2,3 union all select 5,3,3 union all select 6,1,2 union all select 7,2,1 --> 测试数据:[tbState] if object_id('[tbState]') is not null drop table [tbState] create table [tbState]([Id] int,[StateName] varchar(6)) insert [tbState] select 1,'StateA' union all select 2,'StateB' union all select 3,'StateC' --> 测试数据:[tbType] if object_id('[tbType]') is not null drop table [tbType] create table [tbType]([Id] int,[TypeName] varchar(20),[ParentId] INT) insert INTO [tbType] select 1,'TypeAAB',3 union all select 2,'TypeAAA',3 union all select 3,'TypeAA',0 union all select 4,'TypeD',0 union all select 5,'TypeE',0 declare @str varchar(max) set @str='' select @str=@str+','+StateName+'=sum(case when StateName=' +QUOTENAME(StateName,'''')+' then 1 else 0 end)' from ( select a.Id,b.StateName,c.TypeName from [tableA] a left join [tbState] b on a.State=b.Id left join [tbType] c on a.Type=c.Id )t group by StateName DECLARE @Type VARCHAR(10) SET @Type = 'TypeAA' exec(' ;WITH List AS( SELECT tbType.* FROM tbType WHERE tbType.TypeName='''+@Type+''' UNION ALL SELECT tbType.* FROM List,tbType WHERE List.Id = tbType.ParentId ) select TypeName'+@str+' from ('+' select a.Id,b.StateName,c.TypeName,c.Id as cid from [tableA] a left join [tbState] b on a.State=b.Id left join [tbType] c on a.Type=c.Id '+')t where t.cid IN(select List.Id from List where List.TypeName<>'''+@Type+''') group by TypeName') /* (7 行受影响) (3 行受影响) (5 行受影响) TypeName StateA StateB StateC -------------------- ----------- ----------- ----------- TypeAAA 2 0 0 TypeAAB 0 1 0 (2 行受影响) */