sql数据库表名做参数

declare @tablename nvarchar(50)
declare @count int
set @tablename = ‘SplitzRank‘
declare @sqlstr nvarchar(512)
set @sqlstr = ‘select @count=count(*) from ‘+@tablename
select @sqlstr
exec sp_executesql @sqlstr,N‘@count int output‘,@count output
select @count

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