After Image and Before image in case of Generic extraction

[Former Member]

Hi Guru's,

Please explain the concept of the After image and before image wrt to Generic extraction.

[Former Member · Accepted solution]

Hi Vasu,

After Image and Before image conceptually not differs with respect to type of extraction. Normally Generic Extraction would be based on timestamp or 0calday or numeric pointer.

After image: Value after changes (after 0calday value would be).

Before Image: Value before change has happend (Before 0calday value was)

Hope it helps...

Regards,

ARK

[Former Member · Accepted solution]

Thanks a lot.

[Former Member]

hi,

consider a record in data source suppose it is return to ods

now

materid matnme quantiy

1 tiles 20

another recored with the same charcteridti arrive in bw

i.e

1 tiles 78.

now rhe reault is

1 tiles 78(it is new image) for new image

1 tiles 20(before image)

1 tiles +58(additive image) for additive image.

[Former Member]

The concept of before image and after image is more relevant in the context of a write process, say a data load.

Ravi Thothadri