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drop and create INDEX in ETL


drop and create INDEX in ETL

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abhas
abhas
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Hi All,

I am siply loading and updating data from one table to another.But data is huge and number of column are also high. So i want to drop index initially and once data is loaded then i need create index on that table. In the target table there is no primary key.

How can i aschieve this? please suggest ideas.


Thanks
Abhas.
Phil Parkin
Phil Parkin
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abhas (12/10/2013)
Hi All,

I am siply loading and updating data from one table to another.But data is huge and number of column are also high. So i want to drop index initially and once data is loaded then i need create index on that table. In the target table there is no primary key.

How can i aschieve this? please suggest ideas.


Thanks
Abhas.


No magic required:
1) ExecuteSQL task to drop index.
2) Dataflow task to load data.
3) ExecuteSQL task to create index.


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abhas
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Thanks Phil,

But there is no Primary key in the target table , so can go with non-clustered index or clustered index?


Thanks
Abhas.
Koen Verbeeck
Koen Verbeeck
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abhas (12/10/2013)
Thanks Phil,

But there is no Primary key in the target table , so can go with non-clustered index or clustered index?


Thanks
Abhas.


You can either add a primary key (clustered or non-clustered) or just add a non-clustered index.
It really depends on the data and how the table is going to be queried.


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Phil Parkin
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abhas (12/10/2013)
Thanks Phil,

But there is no Primary key in the target table , so can go with non-clustered index or clustered index?


Thanks
Abhas.


Why does the absence of a PK have any bearing on dropping and creating an index? Is there something you are not telling us?


Help us to help you. For better, quicker and more-focused answers to your questions, consider following the advice in this link.

If the answer to your question can be found with a brief Google search, please perform the search yourself, rather than expecting one of the SSC members to do it for you.

Please surround any code or links you post with the appropriate IFCode formatting tags. It helps readability a lot.
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