what is unique key?
Answer Posted / guest
It is a constraint used to avoid duplication of values
within the row of a specified column or set of columns in a
table. It can also allow null values
Is This Answer Correct ? | 20 Yes | 5 No |
Post New Answer View All Answers
How to create a new user account in oracle?
Name the various constraints used in oracle?
can u send the sql dumps to sivakumarr1987@gmail.com plz help me
What is ordinary table in oracle?
Hi this srilatha. I comlpeted my Oracle-hrms. can u provide me interview questions on Core hr, payroll,sshr,OLM etc..
Explain about the analyze command in oracle?
We are using Oracle apps with XML publisher.In that,we are facing some problems while giving a Footer in RTF Template.While giving a footer in RTF Template it is Visible in all the pages,but after the PDF is getiing generated,the Footer are Visible on alternate pages only (like on first page ,third page) and so on. Please provide the Solution for getting the Footer on all the pages.
What is a static data dictionary in oracle?
How to load excel data sheet to oracle database
What is a tns service name?
Can you drop an index associated with a unique or primary key constraint?
List the types of joins used in writing subqueries?
Is truncate autocommit in oracle?
Explain the use of log option in exp command.
What is a proxy object?