How to delete duplicate records if we have huge volume of
records in a table ?
(rowid is not the correct approach)
Answer Posted / ravikumar2614
DELETE FROM EMP E1 WHERE ROWID<
(SELECT MAX(ROWID) FROM EMP E2 WHERE E1.ROWID=E2.ROWID)
IF I AM WRONG PLEASE CORRECT ME ON ravi.info2614@gmail.com
| Is This Answer Correct ? | 1 Yes | 1 No |
Post New Answer View All Answers
generate date / time dimension in informatica
Differentiate between source qualifier and filter transformation?
Reusable transformation and shortcut differences
Explain the difference between mapping parameter and mapping variable?
What are the components of workflow manager?
What is transformation?
Performance tuning in UNIX for informatica mappings?
what is mean by complex business rule ?
Differentiate between router and filter transformation?
What is the use of code page?
What is deployment group?
can you please explain me pre session and post session options?
How do you manage the Parameter files while migrating your data from one environment to another environment?
What is joiner change?
What is the difference between a connected look up and unconnected lookup?