while we using change capture stage we have to be take two
table thats are 1.before table 2. after table .
what is before table and after table
please give me clear notation
Thank You very much in advance
Answer Posted / pranay
The Change Capture stage takes two input data sets, denoted before and after, and outputs a single data set whose records represent the changes made to the before data set to obtain the after data set. The stage produces a change data set, whose table definition is transferred from the after data set’s table definition with the addition of one column: a change code with values encoding the four actions: insert, delete, copy, and edit. The preserve-partitioning flag is set on the change data set.
Copy code:
Allows you to specify an alternative value for the code that indicates the after record is a copy of the before record. By default this code is 0.
Deleted code:
Allows you to specify an alternative value for the code that indicates that a record in the before set has been deleted from the after set. By default this code is 2.
Edit code:
Allows you to specify an alternative value for the code that indicates the after record is an edited version of the before record. By default this code is 3.
Insert Code:
Allows you to specify an alternative value for the code that indicates a new record has been inserted in the after set that did not exist in the before set. By default this code is 1.
Is This Answer Correct ? | 2 Yes | 1 No |
Post New Answer View All Answers
Define Merge?
How one source columns or rows to be loaded in to two different tables?
What are some different alternative commands associated with "dsjob"?
describe the Steps to confiure a Qlogic switch
What is a folder? Difference types of stages?
What is apt_config in datastage?
how do u catch bad rows from OCI stage? And what CLI stands for?
What are routines in datastage? Enlist various types of routines.
How will you move hashed file from one location to another location?
What are system variables and sequencers in datastage
What are constraints and derivations?
What are the types of hashed files in data stage
Define project in datastage?
How and where you used hash file?
How to convert RGB Value to Hexadecimal values in datastage?