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Delta

Former Member
0 Kudos

hi gurus,

what happens internally when a delta is intialized?

ram

Accepted Solutions (1)

Accepted Solutions (1)

Former Member
0 Kudos

Hi,

An extractor identifies the delta and sends it cube.

ex: In LIS, two transparent tables 2lis_xx_biw1 and 2lis_xx_biw2 are used to keep track of the delta.

Cube cannot identify the delta and thats the reason we send the data from ODS to cube in case an extractor does not provide delta capability.

hope its clear...rewarding is the way of saying thanks here.....

shylaja.

Former Member
0 Kudos

Hi Shyalaja,

Do u mean that infocube does not support delta?

can u calrify me?

thanks

ram

Former Member
0 Kudos

Hi,

infosource from oltp can support delta load and in bw ods can support delta load, no cube.

/manfred

Answers (3)

Answers (3)

Former Member
0 Kudos

Hi,

The datasource/Infosource should be delta capable. then only the delta records can be loaded into Infocube.

If the datasource/Infosource is delta capable we get an option for <b>Delta initialisation for the first load</b> and <b>Delta for next ones</b>.

Hope its clear.

shylaja.

Former Member
0 Kudos

Hi Ram,

When you run initialization all the data is extracted which means the delta is enabled. It internally captures are the changes made in the source system. So, the changed records or the new ones are captured with time stamp. Now in delta the data after the last time stamp is extracted which get only delta records which can be changed or new records.

Former Member
0 Kudos

Hi,

It indicates that from next time you only want only the delta(changed/new) records and does a full upload for the first time.

ex:

If ODs object,it compares with the records in Change log and only the delta records enter the Active table.

reward if helpful...

Shylaja.

Former Member
0 Kudos

Hi,

after that the system knows that initialization is done, loads the data according to the selectionoptions and uses this selectionoption for every next deltaload until a new initialization is done (can only be done if the alst initiselections are delete or a new cann be done with no overlapping selectionoptions.

/manfred

Former Member
0 Kudos

Hi Shylaja,

can u explain me how it happens in infocube?

thanks

ram