If a table column has is UNIQUE and has NOT NULL, is it
equivalent to a PRIMARY KEY column?
Answer Posted / bhakti
yes it is equivalent as primary key is nothing but unique
and not null.
| Is This Answer Correct ? | 16 Yes | 6 No |
Post New Answer View All Answers
You have 4 instances running on the same UNIX box. How can you determine which shared memory and semaphores are associated with which instance?
Her departmandaki isçilerden empno' su ikinci sirada olan isçilerin empno, deptno, hiredate, sira_no bigilerini döndüren sorguyu yaziniz?
What is oracle datasource?
How does oracle handle read consistency?
How do I uninstall oracle 11g?
Explain rename?
How to shutdown your 10g xe server from command line?
Differentiate between function and procedure in oracle.
How to assign a table row to a record variable?
How to assign values to variables?
Explain oracle’s server parameter file.
WHEN CURSOR MOVES FROM ONE FORM TO ANOTHER FORM, HOW MANY TRIGGER WILL BE FIRED AND WHAT ARE THEIR SEQUENCE?
Respected sir, Please send me technical questions related to oracle apps..
What is a sub query? Describe its types?
What is data file?