I know that i can create a table without a primary key.But
is there any significance for that table???? while creating
an application.
- 6 Answers
- 7370 Views
- I also Faced
- E-Mail Answers
Answer Posted / manikandan. s
Suppose if we have a situation like we need to store non
unique or null values in any of the column then we should
have table without primary key.
| Is This Answer Correct ? | 5 Yes | 0 No |
Post New Answer View All Answers
What is the maximum limit on the number of columns in a table?
What is meant by joins? List out the types of joins.
Explain the difference between a procedure and a function?
definition of cluster and non-clustered index?
What are internal user account in oracle?
Does facebook use oracle?
i have a question here... As of my knowledge, when we apply an index (b-tree)on a column, internally it arranges the data in b-tree format and do the fetching process correspondingly... and my quetion is... How a bit-map index arranges the data internally when applied on a column?IS it in b-tree format or whatelse?
Can we connect to ORACLE db using Windows Authentication?
How to define default values for formal parameters?
What is coalesce function?
Difference between oracle's plus (+) notation and ansi join notation?
Give the advantages and disadvantages of clusters.
What are temporal data types in oracle?
Is rowid unique in oracle?
How to work with data objects interactively?
