Excel ADODB Sql Query Execution taking hours when manipulate excel tables

[brajesheee]

Hello All

I have 28000 records with 8 column in an sheet. When I convert the sheet into ADODB database and copy to new excel using below code it is executing in less than a min

Set Tables_conn_obj = New ADODB.Connection Tables_conn_str = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" & Table_Filename & ";Extended Properties=""Excel 12.0;ReadOnly=False;HDR = Yes;IMEX=1""" Tables_conn_obj.Open Tables_conn_str First_Temp_sqlqry = "Select * INTO [Excel 12.0;DATABASE=C:\Prod Validation\Database\Second Acat Table.xlsb].[Sheet1] Table [first - Table$];" Tables_conn_obj.Execute First_Temp_sqlqry

But when I change the query to manipulate one column in current table based on another table in the same excel and try to copy the results in another excel, it is taking more than one hour.. why it is taking this much time when both the query results returns the same number of rows and column. I almost spend one week and still not able to resolve this issue.

Even I tried copyfromrecordset, getrows(), getstring(), Looping each recordset fields options all of them taking same amount of time. Is there any excel expert who can help me in this issue. appreciate any inputs...

select ( ''''''manipulating first column based on other table data''''''''''''''
iif( [Second - Table$].[Policy Agent] = (select max([ACAT$].[new_Agent_number]) from [ACAT$] where [ACAT$].[new_Agent_number] = [Second - Table$].[Policy Agent] and [ACAT$].[ACAT_EffectiveDate] = ( select MAX([ACAT$].[ACAT_EffectiveDate] ) from [ACAT$] where [ACAT$].[new_Agent_number] = [Second - Table$].[Policy Agent]and [ACAT$].[ACAT_EffectiveDate] > '2014-10-01') ) , (select max([ACAT$].[Old_Agent_number]) from [ACAT$] where [ACAT$].[new_Agent_number] = [Second - Table$].[Policy Agent] and [ACAT$].[ACAT_EffectiveDate] = ( select MAX([ACAT$].[ACAT_EffectiveDate] ) from [ACAT$] where [ACAT$].[new_Agent_number] = [Second - Table$].[Policy Agent]and [ACAT$].[ACAT_EffectiveDate] > '2014-10-01')) ,

iif( [Second - Table$].[Policy Agent] = (select max([ACAT$].[Old_Agent_number]) from [ACAT$] where [ACAT$].[Old_Agent_number] = [Second - Table$].[Policy Agent] and [ACAT$].[ACAT_EffectiveDate] = ( select MAX([ACAT$].[ACAT_EffectiveDate] ) from [ACAT$]where [ACA T$].[Old_Agent_number] = [Second - Table$].[Policy Agent]and [ACAT$].[ACAT_EffectiveDate] <= '2014-10-01') ), (select max([ACAT$].[new_Agent_number]) from [ACAT$] where [ACAT$].[Old_Agent_number] = [Second - Table$].[Policy Agent] and [ACAT$].[ACAT_EffectiveDate] = ( select MAX([ACAT$].[ACAT_EffectiveDate] ) from [ACAT$] where [ACAT$].[Old_Agent_number] = [Second - Table$].[Policy Agent]and [ACAT$].[ACAT_EffectiveDate] <= '2014-10-01')) ,

[Second - Table$].[Policy Agent] ))) as [Policy Agent],

''''''summing up all other columns''''''''''''''

(iif(isnull(sum([Second - Table$].[Auto BW-Line Of Business Detail])),0,sum([Second - Table$].[Auto BW-Line Of Business Detail]))) as [Auto BW-Line Of Business Detail],(iif(isnull(sum([Second - Table$].[Auto Farmers])),0,sum([Second - Table$].[Auto Farmers]))) as [Auto Farmers],(iif(isnull(sum([Second - Table$].[MCA])),0,sum([Second - Table$].[MCA]))) as [MCA],(iif(isnull(sum([Second - Table$].[CEA])),0,sum([Second - Table$].[CEA]))) as [CEA],(iif(isnull(sum([Second - Table$].[Commercial P&C])),0,sum([Second - Table$].[Commercial P&C]))) as [Commercial P&C],(iif(isnull(sum([Second - Table$].[Comm WC])),0,sum([Second - Table$].[Comm WC]))) as [Comm WC],(iif(isnull(sum([Second - Table$].[Fire Farmers])),0,sum([Second - Table$].[Fire Farmers]))) as [Fire Farmers],(iif(isnull(sum([Second - Table$].[Flood])),0,sum([Second - Table$].[Flood]))) as [Flood],(iif(isnull(sum([Second - Table$].[Kraft Lake])),0,sum([Second - Table$].[Kraft Lake]))) as [Kraft Lake],(iif(isnull(sum([Second - Table$].[Life])),0,sum([Second - Table$].[Life]))) as [Life],(iif(isnull(sum([Second - Table$].[Foremost])),0,sum([Second - Table$].[Foremost]))) as [Foremost],(iif(isnull(sum([Second - Table$].[Umbrella])),0,sum([Second - Table$].[Umbrella]))) as [Umbrella],(iif(isnull(sum([Second - Table$].[MCNA])),0,sum([Second - Table$].[MCNA]))) as [MCNA]

INTO [Excel 12.0;DATABASE=C:\Prod Validation\Database\Second Acat Table.xlsb].[Sheet1]

from [Second - Table$] group by [Second - Table$].[Policy Agent] ;