what are surrogate keys?
Answers were Sorted based on User's Feedback
Answer / sai suresh
surrogate key is an artificial key , it will generate
automatinclly in sequence it will act as a primary key when
the data is heighly denormalized.
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / shiva
surrogate key is a artificial key or system generated
key.when ever a primary key violation occurs,by using
sequence generator t/m we generate surrogate keys
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / deepthi pathuri
A surrogate key in a data warehouse is more than just a
substitute for a natural key.
(OR)
A surrogate key is frequently a sequential number (e.g. a
Sybase "identity column") but doesn't have to be. Having
the key independent of all other columns insulates the
database relationships from changes in data values or
database design and guarantees uniqueness.
| Is This Answer Correct ? | 0 Yes | 1 No |
Answer / pradeep
surrogate key is an autogenerated sequence in data warehouse
acts as primary key as the data in warehouse is highly
denormalised form.
| Is This Answer Correct ? | 0 Yes | 1 No |
Hi frndz, "while i am going to run the infotmatica power designer,he ask the id and password ",then i enterd the id and passwd , at that time i got the error as " failed to connect repository " ?
What are session parameters ? How do you set them?
tell me about your project functionality
Hi ETL gurus can any one tell me with a flow how to implement SCD Type 1 and SCD Type 2 in a single mapping.For some fields SCD type has to be implemented and for some fields scd type has to be implementd..Thank in advance..please let me know in case of any concerns...
What is a command that used to run a batch?
Hi All can anyone tell me where i will get Informatica training in Mumbai?
HOw can we load the normalised data ( Vertical data) to (Horizontal data)with out using decode in the expression transformation and the aggregator transformation. But, what exactly I want is .. If we have million of records,it is not possible using decode and search for that Particular Id to pivot into Horizontal data... Can any one of guys please help me in this regard.....
What are the new features of informatica 9.x developer?
How can i send first half of the records to one target and Remaining to other target?
How to extract original records at one target & Duplicate records at one target? {with out using EXPRESION transformation and sequence generator transformation?}<-this is important
Tell me about informatica architecture.
write sql query following table city gender no chennai male 40 chennai female 35 bangalore male 25 bangalore female 25 mumbai female 15 i want the required output city male female chennai 40 35 bangalore 25 25 mumbai 15