Mar 19, 2012 The first one generates new hashing keys and the second one generates new surrogate keys by adding the uniqueness value to the hashing keys. The process is also taking in consideration the highest uniqueness value for any existing hashing key to manage key collisions and to assign the uniqueness value correctly. Jan 12, 2016 Surrogate Key Question Is there a way to generate a surrogate key dynamically using set processing rather than record level processing? We have a large amount of records in the source which we need to generate a unique identifier in the EDW for and cursor level processing seems to be quite slow in generating surrogate keys for this volume of data. Show 5 replies. Re: How to generate surrogate keys with Teradata and Pushdown hiteshsahni Nov 26, 2014 1:00 AM (in response to tatup) Teradata's Identity column doesnot gurantee sequencing of the numbers. Gaps can be found even if identity column is used.
Teradata: Surrogate Key Concept
Surrogate Key is a unique, database supplied or generated identifier generally used as the primary key/index of a table.
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➠ When to use a surrogate key
➠ Advantages of surrogate key
➠ Disadvantages of surrogate key
![]() Teradata Query History
➠ How to generate surrogate key in Teradata
How To Generate Surrogate Key In TeradataComments are closed.
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