what is the main difference between sorragate key n primary
key in one word
Answers were Sorted based on User's Feedback
Answer / nagaraz
surrogate key is an artificial identyfier for an entity.in
surrogate key are generated by the system sequentially.
primary key is a natural identifier for an entity.in
primary key are all the values are enterd manually by the
which are uniquely identifier there will be no repetion of
data
| Is This Answer Correct ? | 10 Yes | 0 No |
Answer / rajeshchunduri
surrogate key is identifier for the values in entity
generated by system.primary key is generated manually for
the values in entity
| Is This Answer Correct ? | 6 Yes | 0 No |
What is the process of killing a job in datastage?
1.which index is follows the dimensions tables?why? 2.what is the use of trigger in job sequence? 3.what is the mean of optimization? 4.what is the job control?when we use it? what is difference bet batch and sequencer? 6.seq--->seq,seq--->copy--->seq which one is best and efficient?
how does work server jobs?
Unix Qn asked in datastage interview: I have diff type(.txt, .tmp, .bat etc) of file in 4 diff directories, I want move all '.txt' file from 4 directories to other folder. And need to delete all the files except which are created TODAY?
What is oci?
HOW CAN WE SEE THE DATA IN DATASET?
12 Answers IBM, TCS,
How can u write exception handling in seq file????
1.What is a delta record? How you will read it? 2.What are the different types of sorting?
I am having the 2 source files A and B and I want to get the output as, the data which is in file A and which doesn't in file B to a target 1 and which is in file B and which doesn't in file A to a target 2?
how do you pass parameters in a script?
options available in sequence job to run,validate?
How to RD using transformer?