What is set function in sql .E.g.What is difference between
union and union all
- 2 Answers
- 6533 Views
- IBM, TCS, I also Faced
- E-Mail Answers
Answer Posted / durga
set operators are used to combine the out put of more than
one query.
union: used to combine the output Query1 and query2
and display them uniquely
union all : it would combine the two query and displays then
as its duplicates.
| Is This Answer Correct ? | 10 Yes | 0 No |
Post New Answer View All Answers
testing tools?
How to retry multiple errored workflow processes? What is the access level in workflow used for? How do you define start and end functions in workflow? How does they differ from normal functions? Give me some workflow tables? What is the difference between a function and notification in workflow? I have sent two different notifications to two different users and I want to wait till both they are approved to send 3rd notification. How can you achieve it? What is item type and item key in workflow? How do you use attribute values in workflow messages? How do you use lookups in workflow? What are roles in workflow and how they are used? How do you download or upload a workflow from a server? What are steps to customize the workflow? What functions can you perform from workflow administrator responsibility? To send an email to the user workflow notification is the only way or is there any other ways to send it? Give me some workflow standard procedures? How can you run/start/kickoff workflow? What is wf_engine package used for? How many processes can each workflow contain? What is Runnable option in workflow? At what level it exists? What are different types of attributes in workflow? How do you reassign a notification? What is process in workflow? How can you send direct oracle form link through workflow notifications? How can you send a notification to multiple users? Can you change the list dynamically? Can you send html code in workflow notification? I have sent two different notifications to two different users and I want to wait till atleast one is approved to send 3rd notification. How can you achieve it?
List the various types of value set.
What are the Standard Reports and Forms in HRMS?
What is count(*) from po_vendors(any table)?
how can develope the po variance and po summary report? with tables mandatory columns and query please?
How do you register report in oracle apps?
What is oracle soa suite and what are its different components?
WHAT IS CUSTOM VIEW AND CUSTOM COMPONENT?
List the types of flexfield?
what is the differences between internal requisition and internal sales order?
how can i print random rows in plsql table
If we have a repeated record in a table. But the repeated record how i can transfer from table to nested table?
pls send me out bound code of supplers,site,bankiformation code pls as soon as
What are do's and dont's of Interface?
