what is identity columns in teradata

Answer Posted / yogi

Identity column is used in tables to get the unique
values.Values of the attribute is stored in DBC.idcol. If
ALWAYS and NO CYCLE option is used, then duplicate values
would be avoided.

Is This Answer Correct ?    3 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is the primary index in teradata?

591


List out all forms of LOCKS that are available in Teradata.

557


Can any one explain me the difference between BTEQ and MLOAD,TUMP. All canbe used for same purpose but still differnt methods. why ?

3003


What is meant by a Clique?

589


Why is the case expression used in teradata?

595






What type of indexing mechanism do we need to use for a typical data warehouse?

621


There is a column with date in it. If I want to get just month how it can be done? Can I use sub string?

647


Explain the term 'primary key' related to relational database management system?

607


How is MLOAD Client System restarted after execution?

604


Let us say there is a file that consists of 100 records out of which we need to skip the first and the last 20 records. What will the code snippet?

711


Give the sizes of SMALLINT, BYTEINT and INTEGER.

668


Explain the most common data types used in teradata?

594


Explain fallback in teradata?

611


Steps to create a data model?

663


What are the various reporting tools in the market?

618