--SQL SERVER 2000 动态SQL,指课程不止语文、数学、物理这三门课程。(以下同)
declare @sql varchar(8000)
set @sql = 'select 姓名 '
select @sql = @sql + ' , max(case 课程 when ''' + 课程 + ''' then 分数 else 0 end) [' + 课程 + ']'
from (select distinct 课程 from tb) as a
set @sql = @sql + ' from tb group by 姓名'
exec(@sql)
这里面的课程如果是数字类型的怎么办啊?我下面这个例子就提示报错,请问怎么解决呢,谢谢了
报的错是 将 varchar 值 ' then Point else 0 end) [' 转换为数据类型为 tinyint 的列时发生语法错误。
declare @sql varchar(1000);
set @sql='select UserId,sum(Point) 总分';
select @sql=@sql+',sum(case RuleId when '+RuleId+' then Point else 0 end) ['+RuleId+']' from (select distinct RuleId from Test) as a
set @sql=@sql+'from Test group by UserId order by ''总分''';
exec(@sql);
set @sql='select UserId,sum(Point) 总分';
select @sql=@sql+',sum(case RuleId when 'ltrim(+RuleId)+' then Point else 0 end) ['+ltrim(RuleId)+']' from (select distinct RuleId from Test) as a
set @sql=@sql+'from Test group by UserId order by ''总分''';
exec(@sql);
set @sql='select UserId,sum(Point) 总分';
select @sql=@sql+',sum(case RuleId when '+RuleId+' then Point else 0 end) ['+RuleId+']' from (select distinct ltrim(RuleId) RuleId from Test) as a
set @sql=@sql+'from Test group by UserId order by ''总分''';
exec(@sql);这样也是可以的
(Tony) 已经说的很明白了