id name gender
1 Ram Female
2 Kumar Female
3 sathish Female
4 Santhya Male
5 Durga Male
6 Priya Male

This is my input...how to change Gender Male to Female &
Female to Male??? Write sql query for this question???

Answers were Sorted based on User's Feedback



id name gender 1 Ram Female 2 Kumar Female 3 sathish Female 4 San..

Answer / yuvaevergreen

I am not sure whether decode will work in teradata 12.0 but case statement can be used.

update stud set gender =
case gender
when 'male' then 'female'
when 'female' then 'male'
end;

Is This Answer Correct ?    24 Yes 1 No

id name gender 1 Ram Female 2 Kumar Female 3 sathish Female 4 San..

Answer / ankal

update stud set gender=
case gender when'male' then'female'
else 'male' end;

Is This Answer Correct ?    7 Yes 0 No

id name gender 1 Ram Female 2 Kumar Female 3 sathish Female 4 San..

Answer / kumar amit ranjan

UPDATE stud SET gender ='Z' WHERE gender ='F';
UPDATE studmaster SET gender ='F' WHERE gender ='M';
UPDATE studmaster SET gender ='M' WHERE gender ='Z';

Is This Answer Correct ?    3 Yes 2 No

id name gender 1 Ram Female 2 Kumar Female 3 sathish Female 4 San..

Answer / tdguy

update using case option is the best option for this query.

Is This Answer Correct ?    1 Yes 0 No

id name gender 1 Ram Female 2 Kumar Female 3 sathish Female 4 San..

Answer / srinu

update stud set gender= decode(gender,'M','F','F','M')

Is This Answer Correct ?    3 Yes 3 No

id name gender 1 Ram Female 2 Kumar Female 3 sathish Female 4 San..

Answer / apurva kumar

UPDATE table
SET Gender = CASE
WHEN Gender = 'Male' THEN 'Female'
ELSE 'Male'
END

Is This Answer Correct ?    1 Yes 1 No

Post New Answer

More Teradata Interview Questions

We are migrating an oracle table into teradata, the volume of data is huge and partitioned (year wise list partition). How do i simulate the same in teradata.

2 Answers   IBM,


Find 2 highest sal from each dept who have completed 5 year in org

0 Answers   Wipro,


what are the roles and responsibilities of teradata DBA ?

1 Answers   TCS,


how teradata fetches a row from primary index table?

1 Answers  


Define views in teradata with syntax.

0 Answers  






Hash collision?

3 Answers   Satyam,


Discuss the advantages of using partitioned primary index in a query?

0 Answers  


tomorrow i have interview in infosys.can someone pour any suggestions or any interview questions. thank you

0 Answers  


What is the use of fallback?

0 Answers  


What do you mean by ttu in teradata?

0 Answers  


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

0 Answers  


What are the multiload utility limitations?

0 Answers  


Categories