Interested to Buy Any Domain ? << Click Here >> for more details...
what is difference between join and union?
- 3 Answers
- 11431 Views
- IBM, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / rajeev singh
Join display exact information from two or more tables.
and it is not compulsory in both table column equal.
Where as in UNION in both table column should be equal.
and union eliminate the dublicate rows.
| Is This Answer Correct ? | 15 Yes | 2 No |
Answer / sunil
JOIN: You can join the 2 tables on tables primary key or on
the filed which refers to another table
UNION: In both table while doing UNION the filed name
should be same.
| Is This Answer Correct ? | 2 Yes | 2 No |
Answer / harish
JOIN: column wise joining of data.....
UNIOn: row wise joining of data........
Harish poomgame shivappa
NIIT Technolgies
Kolkata
| Is This Answer Correct ? | 8 Yes | 9 No |
What is the IDD?
Explain the difference between record occurrence and record type in idms?
What is a set in idms?
What does a COMMIT statement do?
What is currency?
What is the difference between record occurrence and record type in idms?
Explain about record currency?
When you are obtaining next within a set and get a end of set return code, on what record are you now current?
What is idms?
What is the difference between local and central version operating modes?
What is idms-restart ?
What does a finish do in idms?
COBOL 
