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Categories >> Software >> Data Warehouse >> Informatica
 
 


 

 
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Question
what is incremental loading ?
 Question Submitted By :: Informatica
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
Incremental load is adding/inserting only changed/latest
data from the source.In incremental loading,history data
could remain as it is along with the new data or
overwritten by incremental data.
 
Is This Answer Correct ?    56 Yes 7 No
Preeti
 
Answer
# 2
capturing the chnged data from the source using the concept
of mapping variable for timestamping is known as
incremental loading.

the other load type is full load where we go for full
refresh.
 
Is This Answer Correct ?    31 Yes 7 No
Bsgsr
 
 
 
Answer
# 3
it is a process of considering only new records by omitting
existing records for data load is known as incremen loading.
 
Is This Answer Correct ?    12 Yes 8 No
Chandramohan Reddy
 
Answer
# 4
Incremental loading is load the

History data
Present data

and add insert new data to the table
 
Is This Answer Correct ?    24 Yes 21 No
Rajendra
 
Answer
# 5
increamental loading is the concept of capturing the new
records and updated records from the source it is very help
full in scd's - 2
 
Is This Answer Correct ?    7 Yes 4 No
Vijay
 
Answer
# 6
Incremental loading is nothing but the cdc(change data
capture)
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
sys.sp_cdc_enable_table @source_schema=-----,@source_name=-)
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='--
--')



any suggetions revert me via ravipati65@gmail.com

apps
 
Is This Answer Correct ?    6 Yes 4 No
Apps
 
Answer
# 7
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.
 
Is This Answer Correct ?    2 Yes 0 No
Sekhar
 
Answer
# 8
Last__Extract_Date = The date Fro which you need the data(to
get latest records)
 
Is This Answer Correct ?    0 Yes 0 No
Razeen
 
Answer
# 9
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.
 
Is This Answer Correct ?    0 Yes 0 No
Gopinath
 
Answer
# 10
it is a process of considering only new records by omitting
existing records for data load is known as incremental loading.
 
Is This Answer Correct ?    4 Yes 12 No
Sankar Naidu.talluru
 

 
 
 
Other Informatica Interview Questions
 
  Question Asked @ Answers
 
Which transformation should we use to normalize the COBOL and relational sources? Lehman-Brothers 4
if i am having 10 records in source, i want 20 records in target...how will you do it BirlaSoft 12
in which situations do u go for scds ? TCS 3
how remove 1st 3 records & last 3 records in informatics TetraSoft 4
what is the necessity to use update strategy?(except for updates) Emphasis 2
How i can upload the MainFrame source For Informatica ?   1
What are the scheduling options to run a sesion?   2
How the facts will be loaded? explain HCL 2
Can anyone know that what is the Source File limitation in Informatica? To be more precise .. how many flat file we can use as a source in a mapping if.. 1) The Structure of flat files are same & 2) If the Structure of flat files are different. Please explain the procedure also if it dosn't bother one much!!   2
what is shared lookup&persistent lookup? Cap-Gemini 4
Source having one lakh record and loaded into target. Then, how can i compare records will loaded in table? For example Source having Firstname,Lastname. the same Firstname,Lastname record will be loaded into Target? How can i check in Oracle?   5
If we can implement SCD TYPE 1 AND 2 IN A SINGLE MAPPING.. CAN WE SEE THE RESULT IN A SINGLE OUTPUT? I MEAN I WANT THE RELSULT OF BOTH SCD 1 AND 2 TO BE SEEN IN A SINGLE RUN? TCS 1
 
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