About incremental loading

Mon, 08 Oct 2012 09:48:52 GMT

Hi All,

I am using the following script to do the incremental loading.

QV_Table:

SQL SELECT PrimaryKey, X, getdate() as InsertDate FROM DB_TABLE

WHERE ModificationTime >= #$(LastExecTime)#;

Concatenate LOAD PrimaryKey, X, InsertDate FROM File.QVD

WHERE NOT Exists(PrimaryKey);

STORE QV_Table INTO File.QVD;

You can see that, The InsertDate will be always changing when the row is updated.

What I want is keep the InsertDate static even though other columns are updated, that mean the InsertDate is the initial insert date.

How to finish it?

Re: About incremental loading

Mon, 08 Oct 2012 10:14:22 GMT

Hi Izq_isaac,

As far as I understand your script, it already works per your requirement.

- in QV)_table you're only loading the new records, where currentDate (getdate()) is the value for insertDate

- in your concattenate-Load statement, you're loading the previous loaded records (with the insertDate they got at the moment they were loaded), and only the concttenated records will have the insertDate of getDate()/currentDatetime

Perhaps I'm missing something?

You also write about "insertDate will be changing when the row is updated": in this script there is no factility for "record-updates": it just inserts new ones (and checks on the primary key). Is this the thing you need to change?

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About incremental loading

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