how to load distinct rows

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how to load distinct rows

priya.pk20

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November 15, 2011 at 10:10 pm

#247818

HI, i have 7000 rows in my excel file and some of them are repeated rows. i want to transform the data from excel source to oledb destination. to get the distinct rows into my destintion which transformation is better or is there any other way to get the data without repeating rows?

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Koen Verbeeck SSC Guru Points: 259015 More actions · Answer 1

priya.pk20 (11/15/2011)
HI, i have 7000 rows in my excel file and some of them are repeated rows. i want to transform the data from excel source to oledb destination. to get the distinct rows into my destintion which transformation is better or is there any other way to get the data without repeating rows?

Two options:

* use a SORT component. It has a checkbox at the bottom that you can select to filter out duplicate values. This can have bad performance, but for 7000 rows you should be fine.

* stage the data into a staging table in SQL Server and use TSQL to delete the duplicate rows. This has the best performance, but for 7000 rows this might be overkill.

Need an answer? No, you need a question
My blog at https://sqlkover.com.
MCSE Business Intelligence - Microsoft Data Platform MVP

priya.pk20 Mr or Mrs. 500 Points: 509 More actions · Answer 2

Thank you koen:-),

from your answer, i have another question, if the data is larger than 7000 rows , what would be the best way..:satisfied:

thanks

priya

Revenant SSC-Forever Points: 42467 More actions · Answer 3

Use the suggested staging table (may be temporary) and SELECT DISTINCT.

priya.pk20 Mr or Mrs. 500 Points: 509 More actions · Answer 4

is there any other ways to remove redundant data in loading using ssis?

Sam Vanga SSCommitted Points: 1742 More actions · Answer 5

Staging data into a table is the best and cleanest way as suggested above.

But if for some reason you dont want to use this approach, you could try reading distinct rows in the

source editor itself. In the excel source editor choose SQL Command as the data access mode.

Write a query similar to the following:

select distinct col1,col2,col3

from [sheet1$]

Sam Vanga
http://SamuelVanga.com

Revenant SSC-Forever Points: 42467 More actions · Answer 6

priya.pk20 (11/17/2011)
is there any other ways to remove redundant data in loading using ssis?

Not with the generic SSIS Excel Source. You would need a C# program that would use Interop to read the Excel sheet.

Koen Verbeeck SSC Guru Points: 259015 More actions · Answer 7

samvanga (11/17/2011)
Staging data into a table is the best and cleanest way as suggested above.
But if for some reason you dont want to use this approach, you could try reading distinct rows in the
source editor itself. In the excel source editor choose SQL Command as the data access mode.
Write a query similar to the following:
select distinct col1,col2,col3
from [sheet1$]

Does the JET provider (or ACE for 2007 and up) recognise the DISTINCT keyword? If it does, that would be great.

Need an answer? No, you need a question
My blog at https://sqlkover.com.
MCSE Business Intelligence - Microsoft Data Platform MVP

Sam Vanga SSCommitted Points: 1742 More actions · Answer 8

Koen Verbeeck (11/17/2011)[hrDoes the JET provider (or ACE for 2007 and up) recognise the DISTINCT keyword? If it does, that would be great.

Turns out it doesn't. I just learned this

Earlier i was using 97-2003 version of excel. And it worked with a JET 4.0 provider. Below is the complete connection sting i was using.

Provider=Microsoft.Jet.OLEDB.4.0;

Data Source=D:\Documents and Settings\New Microsoft Excel Worksheet.xls

;Extended Properties="Excel 8.0;HDR=YES";

Sam Vanga
http://SamuelVanga.com

fitsumkh SSChasing Mays Points: 652 More actions · Answer 9

Here is an article on how to do this:

http://merlecarr.wordpress.com/2011/03/29/ssis-select-distinct-from-excel-data-source/

Thanks,

Fitsum

Revenant SSC-Forever Points: 42467 More actions · Answer 10

fitsumkh (11/18/2011)
Here is an article on how to do this:
http://merlecarr.wordpress.com/2011/03/29/ssis-select-distinct-from-excel-data-source/
Thanks,
Fitsum

Wow! Very smart!

Thanks -- I learned something...

priya.pk20 Mr or Mrs. 500 Points: 509 More actions · Answer 11

priya.pk20

Mr or Mrs. 500

Points: 509

November 30, 2011 at 9:06 am

#1414757

thanks for all, for ur sharings..