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SQL code:
declare @d1 datetime,@d2 datetime
set @d1='2010-05-01'
set @d2='2010-05-03'
declare @tbname sysname
declare @sql varchar(8000)
while datediff(d,@d1,@d2)>=0
begin
begin
set @tbname='log_http_'+convert(varchar(8),@d1,112)
if object_id(@tbname) is not null
set @sql=isnull(@sql+' union all ','')+'select * from log_http_'+convert(varchar(8),@d1,112)
end
set @d1=@d1+1
end
print @sql
--select * from log_http_20100501 union all select * from log_http_20100502 union all select * from log_http_20100503
exec(@sql)
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C# code:
private void buttonQuery_Click(object sender, EventArgs e)
{
string dbtablename = "log_" + comboBoxTableName.Text + "_
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