Incremental loading is nothing but the cdc(change data
used to capture the data like insert,update and deleted
data on a table.
1)for this we need exec the sp against the db is to enable
the cdc.(select is_cdc_enabled where db_name='cdc_test')
2)Enable the cdc against the table in the db.(exec
3)wheather the db/table enabled for the cdc by writing a
select query aginst db/table.If it returns 1 enabled or it
returns 0 not enabled.
(select is_tracked_by_cdc from sys.tables where tab_name='--
Incremental load is adding/loading only changed/latest updated
data from the source.In incremental loading,history data
could remain as it is along with the new data or
overwritten by incremental data and also the other load type is full load where we go for full refresh.
In Incremental loading the differnce between the source and
target are dumped at regular intervals. Here we give the
last extract date so that changes only of this particular
date will be loaded to the target tables.
Generally how many Fact Tables and Dimensions Table you
have used in the Project?
Which one is loaded first Fact Table or Dimensions Table
into the warehouse?
What is the size of the Fact Table and Dimension Table?
what is the size of the table and warehouse