what is the query for retrieve the unique values(not display
the duplicates values) from single table?

Answer Posted / tdguy

If its for few columns and small table, use distinct or
group by to fetch only unique values. But for more no of
columns and more no of records in GB, use partition by to
fetch only unique values.

Is This Answer Correct ?    1 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What are default access rights in teradata?

636


What is TPD?

914


In general, how do you optimze any sql in teradata?

559


What is teradata and why it is used?

599


What are the frequently used data types in teradata?

608






What happens when a node suffers a downfall?

675


Backup Script was blocked you are unable to archive the data now. how do you analyze it and where do you identify ?

1615


Define views in teradata with general syntax.

580


Differentiate primary key and partition key?

590


i learn teradata,it is so intersting,now i want teradata certifications ,so any 1 help me to get teradata certifications TD 12 ? email:kdcrazyy@gmail.com

1783


What is bteq utility in teradata?

577


What is bteq script in teradata?

644


How will you solve the problem that occurs during update?

593


Steps to create a data model?

675


Describe primary index in teradata. And what are the available primary index types?

555